Remove gtl/stl_util.

All its usages have been cleaned up.

PiperOrigin-RevId: 278027632
Change-Id: I36d88dd999f1bc15ee8a003a817089f2d43a2037

Author: gunan

tensorflow/core/BUILD

@@ -2283,7 +2283,6 @@ cc_library(
         "//tensorflow/core/lib/gtl:map_util",
         "//tensorflow/core/lib/gtl:optional",
         "//tensorflow/core/lib/gtl:priority_queue_util",
-        "//tensorflow/core/lib/gtl:stl_util",
         "//tensorflow/core/lib/gtl:top_n",
         "//tensorflow/core/lib/hash:crc32c",
         "//tensorflow/core/lib/hash:hash",

tensorflow/core/lib/gtl/BUILD

@@ -6,8 +6,6 @@ package(
         "//tensorflow/core/lib/random:__pkg__",
         # tensorflow/core/lib/strings:proto_serialization uses on gtl:inlined_vector
         "//tensorflow/core/lib/strings:__pkg__",
-        # tensorflow/core/platform:env depends on gtl:stl_util
-        "//tensorflow/core/platform:__subpackages__",
     ],
     licenses = ["notice"],  # Apache 2.0
 )
@@ -128,12 +126,6 @@ cc_library(
     hdrs = ["priority_queue_util.h"],
 )
 
-cc_library(
-    name = "stl_util",
-    hdrs = ["stl_util.h"],
-    deps = ["@com_google_absl//absl/meta:type_traits"],
-)
-
 cc_library(
     name = "top_n",
     hdrs = ["top_n.h"],
@@ -164,7 +156,6 @@ filegroup(
         "iterator_range.h",
         "manual_constructor.h",
         "map_util.h",
-        "stl_util.h",
         "top_n.h",
     ],
     visibility = ["//tensorflow/core:__pkg__"],
@@ -203,7 +194,6 @@ filegroup(
         "map_util.h",
         "optional.h",
         "priority_queue_util.h",
-        "stl_util.h",
         "subtle/map_traits.h",
         "top_n.h",
     ],