Use buildozer to remove deprecated automanaged tags

vendor/github.com/appc/spec/schema/BUILD

@@ -16,7 +16,6 @@ go_library(
         "pod.go",
         "version.go",
     ],
-    tags = ["automanaged"],
     deps = [
         "//vendor/github.com/appc/spec/schema/types:go_default_library",
         "//vendor/go4.org/errorutil:go_default_library",

vendor/github.com/appc/spec/schema/common/BUILD

@@ -10,7 +10,6 @@ load(
 go_library(
     name = "go_default_library",
     srcs = ["common.go"],
-    tags = ["automanaged"],
 )
 
 filegroup(

vendor/github.com/appc/spec/schema/types/BUILD

@@ -37,7 +37,6 @@ go_library(
         "uuid.go",
         "volume.go",
     ],
-    tags = ["automanaged"],
     deps = [
         "//vendor/github.com/appc/spec/schema/common:go_default_library",
         "//vendor/github.com/appc/spec/schema/types/resource:go_default_library",

vendor/github.com/appc/spec/schema/types/resource/BUILD

@@ -16,7 +16,6 @@ go_library(
         "scale_int.go",
         "suffix.go",
     ],
-    tags = ["automanaged"],
     deps = [
         "//vendor/github.com/spf13/pflag:go_default_library",
         "//vendor/gopkg.in/inf.v0:go_default_library",