message: Remove dependency on stl_util in env.cc
diff: @@ -36,7 +36,6 @@ limitations under the License.
  #endif
  #include "tensorflow/core/lib/core/errors.h"
  -#include "tensorflow/core/lib/gtl/stl_util.h"
  #include "tensorflow/core/lib/io/path.h"
  #include "tensorflow/core/lib/strings/stringprintf.h"
  #include "tensorflow/core/platform/env.h"
  @@ -402,8 +401,8 @@ Status ReadFileToString(Env* env, const string& fname, string* data) {
  if (!s.ok()) {
  return s;
  }
  - gtl::STLStringResizeUninitialized(data, file_size);
  - char* p = gtl::string_as_array(data);
  + data->resize(file_size);
  + char* p = &*data->begin();
  StringPiece result;
  s = file->Read(0, file_size, &result, p);
  if (!s.ok()) {
  