Cleanup imports.

counter_test.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
+import "testing"
 
 func TestCounterZero(t *testing.T) {
 	c := NewCounter()

ewma_test.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
+import "testing"
 
 func TestEWMA1(t *testing.T) {
 	a := NewEWMA1()

gauge_test.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
+import "testing"
 
 func TestGauge(t *testing.T) {
 	g := NewGauge()

healthcheck.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"os"
-)
+import "os"
 
 type Healthcheck interface {
 	Check()

histogram_test.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
+import "testing"
 
 func TestEmptyHistogram(t *testing.T) {
 	h := NewHistogram(NewUniformSample(100))

meter.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"time"
-)
+import "time"
 
 type Meter interface {
 	Count() int64

meter_test.go

@@ -1,8 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
+import "testing"
 
 func TestMeterZero(t *testing.T) {
 	m := NewMeter()

sample_test.go

@@ -1,10 +1,6 @@
 package metrics
 
-import (
-	"testing"
-)
-
-// <https://github.com/codahale/metrics/blob/development/metrics-core/src/test/java/com/yammer/metrics/stats/tests/ExponentiallyDecayingSampleTest.java>
+import "testing"
 
 func TestExpDecaySample10(t *testing.T) {
 	s := NewExpDecaySample(100, 0.99)