Revert all SASL authzid (new feature) commits

- Revert all commits related to the SASL authzid feature since the next
  release will be a patch release, 7.65.1.

Prior to this change CURLOPT_SASL_AUTHZID  / --sasl-authzid was destined
for the next release, assuming it would be a feature release 7.66.0.
However instead the next release will be a patch release, 7.65.1 and
will not contain any new features.

After the patch release after the reverted commits can be restored by
using cherry-pick:

git cherry-pick a14d72c a9499ff 8c1cc36 c2a8d52 0edf690

Details for all reverted commits:

Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."

This reverts commit 0edf6907ae37e2020722e6f61229d8ec64095b0a.

Revert "tests: Fix the line endings for the SASL alt-auth tests"

This reverts commit c2a8d52a1356a722ff9f4aeb983cd4eaf80ef221.

Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"

This reverts commit 8c1cc369d0c7163c6dcc91fd38edfea1f509ae75.

Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"

This reverts commit a9499ff136d89987af885e2d7dff0a066a3e5817.

Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"

This reverts commit a14d72ca2fec5d4eb5a043936e4f7ce08015c177.

7 files changed, 3 insertions, 332 deletions

diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 552736341..afea1fb83 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -93,21 +93,20 @@ test809 test810 test811 test812 test813 test814 test815 test816 test817 \
 test818 test819 test820 test821 test822 test823 test824 test825 test826 \
 test827 test828 test829 test830 test831 test832 test833 test834 test835 \
 test836 test837 test838 test839 test840 test841 test842 test843 test844 \
-test845 test846 test847 test848 test849 \
+test845 test846 test847 \
 \
 test850 test851 test852 test853 test854 test855 test856 test857 test858 \
 test859 test860 test861 test862 test863 test864 test865 test866 test867 \
 test868 test869 test870 test871 test872 test873 test874 test875 test876 \
 test877 test878 test879 test880 test881 test882 test883 test884 test885 \
-test886 test887 test888 test889 test890 test891 test892 test893 \
+test886 test887 test888 test889 test890 test891 \
 \
 test900 test901 test902 test903 test904 test905 test906 test907 test908 \
 test909 test910 test911 test912 test913 test914 test915 test916 test917 \
 test918 test919 test920 test921 test922 test923 test924 test925 test926 \
 test927 test928 test929 test930 test931 test932 test933 test934 test935 \
 test936 test937 test938 test939 test940 test941 test942 test943 test944 \
-test945 test946 test947 test948 test949 test950 test951 test952 test953 \
-test954 \
+test945 test946 test947 test948 test949 test950 test951 test952 \
 \
 test1000 test1001 test1002 test1003 test1004 test1005 test1006 test1007 \
 test1008 test1009 test1010 test1011 test1012 test1013 test1014 test1015 \
diff --git a/tests/data/test848 b/tests/data/test848
deleted file mode 100644
index 2b4a30b2a..000000000
--- a/tests/data/test848
+++ /dev/null
@@ -1,56 +0,0 @@
-<testcase>
-<info>
-<keywords>
-IMAP
-SASL
-SASL AUTH PLAIN
-RFC4616
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTHENTICATE +
-REPLY c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ= A002 OK AUTHENTICATE completed
-</servercmd>
-<data>
-From: me@somewhere

-To: fake@nowhere

-

-body

-

---

-  yours sincerely

-</data>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-imap
-</server>
- <name>
-IMAP plain authentication with alternative authorization identity
- </name>
- <command>
-'imap://%HOSTIP:%IMAPPORT/848/;MAILINDEX=1' -u user:secret --sasl-authzid shared-mailbox
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-<protocol>
-A001 CAPABILITY

-A002 AUTHENTICATE PLAIN

-c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ=

-A003 SELECT 848

-A004 FETCH 1 BODY[]

-A005 LOGOUT

-</protocol>
-</verify>
-</testcase>
diff --git a/tests/data/test849 b/tests/data/test849
deleted file mode 100644
index 8a4b39c00..000000000
--- a/tests/data/test849
+++ /dev/null
@@ -1,51 +0,0 @@
-<testcase>
-<info>
-<keywords>
-IMAP
-SASL
-SASL AUTH PLAIN
-RFC4616
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTHENTICATE +
-REPLY dXJzZWwAa3VydAB4aXBqM3BsbXE= A002 NO Not authorized
-</servercmd>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-imap
-</server>
- <name>
-IMAP plain authentication with alternative authorization identity (Not authorized)
- </name>
- <command>
-'imap://%HOSTIP:%IMAPPORT/849/;MAILINDEX=1' -u kurt:xipj3plmq --sasl-authzid ursel
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-# 67 - CURLE_LOGIN_DENIED
-<errorcode>
-67
-</errorcode>
-#
-# The multi interface considers a broken "CONNECT" as a prematurely broken
-# transfer and such a connection will not get a "LOGOUT"
-<protocol>
-A001 CAPABILITY

-A002 AUTHENTICATE PLAIN

-dXJzZWwAa3VydAB4aXBqM3BsbXE=

-</protocol>
-</verify>
-</testcase>
diff --git a/tests/data/test892 b/tests/data/test892
deleted file mode 100644
index 4b8318292..000000000
--- a/tests/data/test892
+++ /dev/null
@@ -1,57 +0,0 @@
-<testcase>
-<info>
-<keywords>
-POP3
-SASL
-SASL AUTH PLAIN
-RFC1734
-RFC4616
-RFC5034
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTH +
-REPLY c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ= +OK Login successful
-</servercmd>
-<data>
-From: me@somewhere

-To: fake@nowhere

-

-body

-

---

-  yours sincerely

-</data>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-pop3
-</server>
- <name>
-POP3 plain authentication with alternative authorization identity
- </name>
- <command>
-pop3://%HOSTIP:%POP3PORT/892 -u user:secret --sasl-authzid shared-mailbox
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-<protocol>
-CAPA

-AUTH PLAIN

-c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ=

-RETR 892

-QUIT

-</protocol>
-</verify>
-</testcase>
diff --git a/tests/data/test893 b/tests/data/test893
deleted file mode 100644
index 2a762fc21..000000000
--- a/tests/data/test893
+++ /dev/null
@@ -1,53 +0,0 @@
-<testcase>
-<info>
-<keywords>
-POP3
-SASL
-SASL AUTH PLAIN
-RFC1734
-RFC4616
-RFC5034
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTH +
-REPLY dXJzZWwAa3VydAB4aXBqM3BsbXE= -ERR Not authorized
-</servercmd>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-pop3
-</server>
- <name>
-POP3 plain authentication with alternative authorization identity (Not authorized)
- </name>
- <command>
-pop3://%HOSTIP:%POP3PORT/893 -u kurt:xipj3plmq --sasl-authzid ursel
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-# 67 - CURLE_LOGIN_DENIED
-<errorcode>
-67
-</errorcode>
-#
-# The multi interface considers a broken "CONNECT" as a prematurely broken
-# transfer and such a connection will not get a "QUIT"
-<protocol>
-CAPA

-AUTH PLAIN

-dXJzZWwAa3VydAB4aXBqM3BsbXE=

-</protocol>
-</verify>
-</testcase>
diff --git a/tests/data/test953 b/tests/data/test953
deleted file mode 100644
index 4a70e1f31..000000000
--- a/tests/data/test953
+++ /dev/null
@@ -1,56 +0,0 @@
-<testcase>
-<info>
-<keywords>
-SMTP
-SASL
-SASL AUTH PLAIN
-RFC4616
-RFC4954
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTH 334 PLAIN supported
-REPLY dXJzZWwAa3VydAB4aXBqM3BsbXE= 235 Authenticated
-</servercmd>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-smtp
-</server>
- <name>
-SMTP plain authentication with alternative authorization identity
- </name>
-<stdin>
-mail body

-</stdin>
- <command>
-smtp://%HOSTIP:%SMTPPORT/953 --mail-rcpt recipient@example.com --mail-from sender@example.com -u kurt:xipj3plmq --sasl-authzid ursel -T -
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-<protocol>
-EHLO 953

-AUTH PLAIN

-dXJzZWwAa3VydAB4aXBqM3BsbXE=

-MAIL FROM:<sender@example.com>

-RCPT TO:<recipient@example.com>

-DATA

-QUIT

-</protocol>
-<upload>
-mail body

-.

-</upload>
-</verify>
-</testcase>
diff --git a/tests/data/test954 b/tests/data/test954
deleted file mode 100644
index a5e6bb0d3..000000000
--- a/tests/data/test954
+++ /dev/null
@@ -1,55 +0,0 @@
-<testcase>
-<info>
-<keywords>
-SMTP
-SASL
-SASL AUTH PLAIN
-RFC4616
-RFC4954
-</keywords>
-</info>
-
-#
-# Server-side
-<reply>
-<servercmd>
-AUTH PLAIN
-REPLY AUTH 334 PLAIN supported
-REPLY dXJzZWwAa3VydAB4aXBqM3BsbXE= 501 Not authorized
-</servercmd>
-</reply>
-
-#
-# Client-side
-<client>
-<server>
-smtp
-</server>
- <name>
-SMTP plain authentication with alternative authorization identity (Not authorized)
- </name>
-<stdin>
-mail body
-</stdin>
- <command>
-smtp://%HOSTIP:%SMTPPORT/954 --mail-rcpt recipient@example.com --mail-from sender@example.com -u kurt:xipj3plmq --sasl-authzid ursel -T -
-</command>
-</client>
-
-#
-# Verify data after the test has been "shot"
-<verify>
-# 67 - CURLE_LOGIN_DENIED
-<errorcode>
-67
-</errorcode>
-#
-# The multi interface considers a broken "CONNECT" as a prematurely broken
-# transfer and such a connection will not get a "QUIT"
-<protocol>
-EHLO 954

-AUTH PLAIN

-dXJzZWwAa3VydAB4aXBqM3BsbXE=

-</protocol>
-</verify>
-</testcase>