Use buildozer to remove deprecated automanaged tags

hack/BUILD

@@ -59,7 +59,6 @@ test_suite(
 go_binary(
     name = "hack",
     library = ":go_default_library",
-    tags = ["automanaged"],
 )
 
 go_test(
@@ -67,11 +66,9 @@ go_test(
     srcs = ["e2e_test.go"],
     data = glob(["testdata/**"]),
     library = ":go_default_library",
-    tags = ["automanaged"],
 )
 
 go_library(
     name = "go_default_library",
     srcs = ["e2e.go"],
-    tags = ["automanaged"],
 )

hack/boilerplate/test/BUILD

@@ -13,7 +13,6 @@ go_library(
         "fail.go",
         "pass.go",
     ],
-    tags = ["automanaged"],
 )
 
 filegroup(

hack/cmd/teststale/BUILD

@@ -12,20 +12,17 @@ load(
 go_binary(
     name = "teststale",
     library = ":go_default_library",
-    tags = ["automanaged"],
 )
 
 go_test(
     name = "go_default_test",
     srcs = ["teststale_test.go"],
     library = ":go_default_library",
-    tags = ["automanaged"],
 )
 
 go_library(
     name = "go_default_library",
     srcs = ["teststale.go"],
-    tags = ["automanaged"],
     deps = ["//vendor/github.com/golang/glog:go_default_library"],
 )