internal/libs: delete unused functionality (#7569)

internal/libs/fail/fail.go

@@ -1,40 +0,0 @@
-package fail
-
-import (
-	"fmt"
-	"os"
-	"strconv"
-)
-
-func envSet() int {
-	callIndexToFailS := os.Getenv("FAIL_TEST_INDEX")
-
-	if callIndexToFailS == "" {
-		return -1
-	}
-
-	var err error
-	callIndexToFail, err := strconv.Atoi(callIndexToFailS)
-	if err != nil {
-		return -1
-	}
-
-	return callIndexToFail
-}
-
-// Fail when FAIL_TEST_INDEX == callIndex
-var callIndex int // indexes Fail calls
-
-func Fail() {
-	callIndexToFail := envSet()
-	if callIndexToFail < 0 {
-		return
-	}
-
-	if callIndex == callIndexToFail {
-		fmt.Printf("*** fail-test %d ***\n", callIndex)
-		os.Exit(1)
-	}
-
-	callIndex++
-}

internal/libs/timer/throttle_timer.go

@@ -55,13 +55,6 @@ func (t *ThrottleTimer) Set() {
 	}
 }
 
-func (t *ThrottleTimer) Unset() {
-	t.mtx.Lock()
-	defer t.mtx.Unlock()
-	t.isSet = false
-	t.timer.Stop()
-}
-
 // For ease of .Stop()'ing services before .Start()'ing them,
 // we ignore .Stop()'s on nil ThrottleTimers
 func (t *ThrottleTimer) Stop() bool {