Remove libs/clock in favor of luci-go/common/clock.

go/src/infra/libs/clock/testclock/testtimer.go

Index: go/src/infra/libs/clock/testclock/testtimer.go
diff --git a/go/src/infra/libs/clock/testclock/testtimer.go b/go/src/infra/libs/clock/testclock/testtimer.go
deleted file mode 100644
index 8437a292b2b6e5533c2b26a849b95caefcc8dc87..0000000000000000000000000000000000000000
--- a/go/src/infra/libs/clock/testclock/testtimer.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package testclock
-
-import (
-	"time"
-
-	"infra/libs/clock"
-)
-
-// timer is an implementation of clock.TestTimer that uses a channel
-// to signal the timer to fire.
-//
-// The channel is buffered so it can be used without requiring a separate signalling
-// goroutine.
-type timer struct {
-	clock   *testClock     // The underlying test clock instance.
-	signalC chan time.Time // Underlying signal channel.
-
-	// Cancels callback from clock.invokeAt. Being not nil implies that the timer
-	// is active.
-	cancelFunc cancelFunc
-}
-
-var _ clock.Timer = (*timer)(nil)
-
-// NewTimer returns a new, instantiated timer.
-func newTimer(clock *testClock) clock.Timer {
-	t := timer{
-		clock: clock,
-	}
-	return &t
-}
-
-func (t *timer) GetC() (c <-chan time.Time) {
-	if t.cancelFunc != nil {
-		c = t.signalC
-	}
-	return
-}
-
-func (t *timer) Reset(d time.Duration) (active bool) {
-	now := t.clock.Now()
-	triggerTime := now.Add(d)
-
-	// Signal our timerSet callback.
-	t.clock.signalTimerSet(t)
-
-	// Stop our current polling goroutine, if it's running.
-	active = t.Stop()
-
-	// Set timer properties.
-	t.signalC = make(chan time.Time, 1)
-	t.cancelFunc = t.clock.invokeAt(triggerTime, t.signal)
-	return
-}
-
-func (t *timer) Stop() bool {
-	// If the timer is not running, we're done.
-	if t.cancelFunc == nil {
-		return false
-	}
-
-	// Clear our state.
-	t.cancelFunc()
-	t.cancelFunc = nil
-	return true
-}
-
-// Sends a single signal, clearing the channel afterwards.
-func (t *timer) signal(now time.Time) {
-	if t.signalC != nil {
-		t.signalC <- now
-	}
-}