1 files changed, 0 insertions, 76 deletions
diff --git a/vendor/go.opencensus.io/trace/sampling.go b/vendor/go.opencensus.io/trace/sampling.go
deleted file mode 100644
index 313f8b6..0000000
--- a/vendor/go.opencensus.io/trace/sampling.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2017, OpenCensus Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package trace
-
-import (
-	"encoding/binary"
-)
-
-const defaultSamplingProbability = 1e-4
-
-func newDefaultSampler() Sampler {
-	return ProbabilitySampler(defaultSamplingProbability)
-}
-
-// Sampler decides whether a trace should be sampled and exported.
-type Sampler func(SamplingParameters) SamplingDecision
-
-// SamplingParameters contains the values passed to a Sampler.
-type SamplingParameters struct {
-	ParentContext   SpanContext
-	TraceID         TraceID
-	SpanID          SpanID
-	Name            string
-	HasRemoteParent bool
-}
-
-// SamplingDecision is the value returned by a Sampler.
-type SamplingDecision struct {
-	Sample bool
-}
-
-// ProbabilitySampler returns a Sampler that samples a given fraction of traces.
-//
-// It also samples spans whose parents are sampled.
-func ProbabilitySampler(fraction float64) Sampler {
-	if !(fraction >= 0) {
-		fraction = 0
-	} else if fraction >= 1 {
-		return AlwaysSample()
-	}
-
-	traceIDUpperBound := uint64(fraction * (1 << 63))
-	return Sampler(func(p SamplingParameters) SamplingDecision {
-		if p.ParentContext.IsSampled() {
-			return SamplingDecision{Sample: true}
-		}
-		x := binary.BigEndian.Uint64(p.TraceID[0:8]) >> 1
-		return SamplingDecision{Sample: x < traceIDUpperBound}
-	})
-}
-
-// AlwaysSample returns a Sampler that samples every trace.
-func AlwaysSample() Sampler {
-	return func(p SamplingParameters) SamplingDecision {
-		return SamplingDecision{Sample: true}
-	}
-}
-
-// NeverSample returns a Sampler that samples no traces.
-func NeverSample() Sampler {
-	return func(p SamplingParameters) SamplingDecision {
-		return SamplingDecision{Sample: false}
-	}
-}