avcodec/acelp_*: Remove unnecessary headers

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/acelp_filters.c

@@ -20,8 +20,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <inttypes.h>
 #include <stddef.h>
+#include <stdint.h>
 
 #include "config.h"
 #include "libavutil/avassert.h"

libavcodec/acelp_pitch_delay.c

@@ -23,8 +23,6 @@
 #include "libavutil/common.h"
 #include "libavutil/ffmath.h"
 #include "libavutil/float_dsp.h"
-#include "libavutil/mathematics.h"
-#include "avcodec.h"
 #include "acelp_pitch_delay.h"
 #include "celp_math.h"
 #include "audiodsp.h"

libavcodec/acelp_vectors.c

@@ -20,12 +20,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <inttypes.h>
+#include <stdint.h>
 
+#include "config.h"
 #include "libavutil/avassert.h"
 #include "libavutil/common.h"
 #include "libavutil/float_dsp.h"
-#include "avcodec.h"
 #include "acelp_vectors.h"
 
 const uint8_t ff_fc_2pulses_9bits_track1_gray[16] =