contrib: ffmpeg: remove unused FFMPEG_CFLAGS

contrib/src/ffmpeg/rules.mak

@@ -55,10 +55,6 @@ ifeq ($(ARCH),arm)
 FFMPEGCONF += --arch=arm
 ifdef HAVE_ARMV7A
 FFMPEGCONF += --cpu=cortex-a8 --enable-neon
-FFMPEG_CFLAGS += -mfpu=vfpv3-d16
-ifndef HAVE_ANDROID # We want NEON autodetect on Android
-FFMPEG_CFLAGS += -mfpu=neon
-endif
 endif
 endif
 
@@ -94,17 +90,6 @@ endif
 ifdef HAVE_LINUX
 FFMPEGCONF += --target-os=linux --enable-pic
 
-# Android x86
-ifeq ($(ANDROID_ABI), x86)
-ifdef HAVE_ANDROID
-# Android-x86 gcc doesn't guarantee an aligned stack, but this is
-# handled by __attribute__((force_align_arg_pointer)) in libavcodec
-# already, so we tell gcc to assume this alignment, so we don't need
-# to waste a precious register in assembly functions to realign it.
-FFMPEG_CFLAGS += -mincoming-stack-boundary=4
-endif # HAVE_ANDROID
-endif # x86
-
 endif
 
 # Windows