vendor cleanup: remove unused,non-go and test files

vendor/k8s.io/client-go/informers/internalinterfaces/BUILD

@@ -1,31 +0,0 @@
-package(default_visibility = ["//visibility:public"])
-
-load(
-    "@io_bazel_rules_go//go:def.bzl",
-    "go_library",
-)
-
-go_library(
-    name = "go_default_library",
-    srcs = ["factory_interfaces.go"],
-    importpath = "k8s.io/client-go/informers/internalinterfaces",
-    deps = [
-        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
-        "//vendor/k8s.io/client-go/kubernetes:go_default_library",
-        "//vendor/k8s.io/client-go/tools/cache:go_default_library",
-    ],
-)
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [":package-srcs"],
-    tags = ["automanaged"],
-)

vendor/k8s.io/client-go/informers/internalinterfaces/factory_interfaces.go

@@ -1,38 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-// Code generated by informer-gen. DO NOT EDIT.
-
-package internalinterfaces
-
-import (
-	time "time"
-
-	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	runtime "k8s.io/apimachinery/pkg/runtime"
-	kubernetes "k8s.io/client-go/kubernetes"
-	cache "k8s.io/client-go/tools/cache"
-)
-
-type NewInformerFunc func(kubernetes.Interface, time.Duration) cache.SharedIndexInformer
-
-// SharedInformerFactory a small interface to allow for adding an informer without an import cycle
-type SharedInformerFactory interface {
-	Start(stopCh <-chan struct{})
-	InformerFor(obj runtime.Object, newFunc NewInformerFunc) cache.SharedIndexInformer
-}
-
-type TweakListOptionsFunc func(*v1.ListOptions)