remove guard nolints from all headers

include/libyuv/mjpeg_decoder.h

 /*
  *  Copyright 2012 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef INCLUDE_LIBYUV_MJPEG_DECODER_H_  // NOLINT
+#ifndef INCLUDE_LIBYUV_MJPEG_DECODER_H_
 #define INCLUDE_LIBYUV_MJPEG_DECODER_H_
 
 #include "libyuv/basic_types.h"
 
 #ifdef __cplusplus
 // NOTE: For a simplified public API use convert.h MJPGToI420().
 
 struct jpeg_common_struct;
 struct jpeg_decompress_struct;
 struct jpeg_source_mgr;
@@ skipping 160 matching lines @@
   int* scanlines_sizes_;
   // Temporary buffer used for decoding when we can't decode directly to the
   // output buffers. Large enough for just one iMCU row.
   uint8** databuf_;
   int* databuf_strides_;
 };
 
 }  // namespace libyuv
 
 #endif  //  __cplusplus
-#endif  // INCLUDE_LIBYUV_MJPEG_DECODER_H_  NOLINT
+#endif  // INCLUDE_LIBYUV_MJPEG_DECODER_H_