diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 9040b32f57..aaf9ceb4f9 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -656,7 +656,6 @@ SKIPHEADERS-$(CONFIG_LIBSCHROEDINGER)  += libschroedinger.h
 SKIPHEADERS-$(CONFIG_VAAPI)            += vaapi_internal.h
 SKIPHEADERS-$(CONFIG_VDPAU)            += vdpau.h
 SKIPHEADERS-$(CONFIG_XVMC)             += xvmc.h
-SKIPHEADERS                            += mpegaudio3.h
 
 EXAMPLES = api
 
diff --git a/libavcodec/mpegaudio3.h b/libavcodec/mpegaudio3.h
deleted file mode 100644
index 7047652f6e..0000000000
--- a/libavcodec/mpegaudio3.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (c) 2007 Michael Niedermayer
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/* layer 3 "granule" */
-typedef struct GranuleDef {
-    uint8_t scfsi;
-    int part2_3_length;
-    int big_values;
-    int global_gain;
-    int scalefac_compress;
-    uint8_t block_type;
-    uint8_t switch_point;
-    int table_select[3];
-    int subblock_gain[3];
-    uint8_t scalefac_scale;
-    uint8_t count1table_select;
-    int region_size[3]; /* number of huffman codes in each region */
-    int preflag;
-    int short_start, long_end; /* long/short band indexes */
-    uint8_t scale_factors[40];
-    int32_t sb_hybrid[SBLIMIT * 18]; /* 576 samples */
-} GranuleDef;
-
-void ff_mp3_init(void);
-
-/**
- * Compute huffman coded region sizes.
- */
-void ff_init_short_region(MPADecodeContext *s, GranuleDef *g);
-
-/**
- * Compute huffman coded region sizes.
- */
-void ff_init_long_region(MPADecodeContext *s, GranuleDef *g, int ra1, int ra2);
-
-void ff_compute_band_indexes(MPADecodeContext *s, GranuleDef *g);