Update bazel and vendor by hack/update-bazel.sh and hack/update-vendor.sh

Author: RainbowMango

staging/src/k8s.io/legacy-cloud-providers/aws/BUILD

@@ -66,7 +66,6 @@ go_library(
         "//vendor/github.com/aws/aws-sdk-go/service/elbv2:go_default_library",
         "//vendor/github.com/aws/aws-sdk-go/service/kms:go_default_library",
         "//vendor/github.com/aws/aws-sdk-go/service/sts:go_default_library",
-        "//vendor/github.com/prometheus/client_golang/prometheus:go_default_library",
         "//vendor/gopkg.in/gcfg.v1:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
     ],

staging/src/k8s.io/legacy-cloud-providers/go.mod

@@ -16,7 +16,6 @@ require (
 	github.com/dnaeon/go-vcr v1.0.1 // indirect
 	github.com/gophercloud/gophercloud v0.1.0
 	github.com/mitchellh/mapstructure v1.1.2
-	github.com/prometheus/client_golang v0.9.4
 	github.com/rubiojr/go-vhd v0.0.0-20160810183302-0bfd3b39853c
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/stretchr/testify v1.3.0