Move mmx.h to the only place where it is used

po/POTFILES.in

 # main sources
-include/mmx.h
 include/vlc_access.h
 include/vlc_acl.h
 include/vlc_aout.h
@@ -1133,6 +1132,7 @@ modules/video_filter/logo.c
 modules/video_filter/magnify.c
 modules/video_filter/marq.c
 modules/video_filter/mirror.c
+modules/video_filter/mmx.h
 modules/video_filter/mosaic.c
 modules/video_filter/mosaic.h
 modules/video_filter/motionblur.c

src/Makefile.am

@@ -109,7 +109,6 @@ pluginsinclude_HEADERS = \
 	$(NULL)
 
 noinst_HEADERS = \
-	../include/mmx.h \
 	../include/vlc_codec_synchro.h \
 	../include/vlc_codecs.h \
 	../include/vlc_fixups.h \