Remove usages of tensorflow/core/platform/default/build_config:base.

This is part of the refactoring described in tensorflow/community#179

PiperOrigin-RevId: 286819947
Change-Id: Iff7841d87244a10ab4554e61b2731350020ff236

Author: bmzhao

tensorflow/compiler/mlir/lite/BUILD

@@ -590,7 +590,6 @@ tf_cc_binary(
         ":flatbuffer_translate_lib",
         "//tensorflow/core:lib",
         "//tensorflow/core/platform:logging",
-        "//tensorflow/core/platform/default/build_config:base",
         "//tensorflow/lite:framework",
         "//tensorflow/lite/delegates/flex:delegate",
         "//tensorflow/lite/kernels:builtin_ops",

tensorflow/core/BUILD

@@ -324,7 +324,6 @@ cc_library(
         "//tensorflow/core/platform:threadpool_interface",
         "//tensorflow/core/platform:threadpool_options",
         "//tensorflow/core/platform:types",
-        "//tensorflow/core/platform/default/build_config:base",
         "@com_google_absl//absl/base",
         "@com_google_absl//absl/strings",
     ],

tensorflow/core/platform/default/build_config/BUILD

@@ -146,12 +146,6 @@ cc_library(
     copts = tf_copts(),
 )
 
-cc_library(
-    name = "base",
-    srcs = [],
-    copts = tf_copts(),
-)
-
 cc_library(
     name = "port",
     srcs = [],