Remove unused imports

Author: jngo2

cmd/aws-iam-authenticator/verify.go

@@ -21,11 +21,9 @@ import (
 	"fmt"
 	"os"
 
-	"sigs.k8s.io/aws-iam-authenticator/pkg/metrics"
 	"sigs.k8s.io/aws-iam-authenticator/pkg/token"
 
 	"github.com/aws/aws-sdk-go/aws/endpoints"
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )