clean up empty dir for admissionregistration

staging/src/k8s.io/apiserver/pkg/admission/BUILD

@@ -81,7 +81,6 @@ filegroup(
         "//staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/testcerts:all-srcs",
         "//staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/testing:all-srcs",
         "//staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/validating:all-srcs",
-        "//staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/versioned:all-srcs",
     ],
     tags = ["automanaged"],
 )

staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/versioned/BUILD

-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [":package-srcs"],
-    tags = ["automanaged"],
-    visibility = ["//visibility:public"],
-)