Bug 1515257 - Remove VPX_ARM_ASM. r=firefox-build-system-reviewers,ted

It is only used in one place, where it is redundant with VPX_AS_CONVERSION.

Depends on D14945

Differential Revision: https://phabricator.services.mozilla.com/D14946

--HG--
extra : moz-landing-system : lando

media/libvpx/Makefile.in

@@ -6,8 +6,6 @@
 
 include $(topsrcdir)/config/rules.mk
 
-ifdef VPX_ARM_ASM
-
 ifdef VPX_AS_CONVERSION
 # The ARM asm is written in ARM RVCT syntax, but we actually build it with
 # gas using GNU syntax. Add some rules to perform the conversion.
@@ -22,4 +20,3 @@ GENERATED_DIRS += libvpx/vpx_dsp/arm
 
 $(addsuffix .$(OBJ_SUFFIX), idct4x4_add_neon.asm idct8x8_add_neon.asm idct16x16_add_neon.asm): libvpx/vpx_dsp/arm/idct_neon.asm.S
 endif
-endif

old-configure.in

@@ -1811,7 +1811,6 @@ fi
 VPX_USE_YASM=
 VPX_ASFLAGS=
 VPX_AS_CONVERSION=
-VPX_ARM_ASM=
 LIBJPEG_TURBO_AS=
 LIBJPEG_TURBO_ASFLAGS=
 MOZ_PREF_EXTENSIONS=1
@@ -2286,7 +2285,6 @@ if test -z "$MOZ_SYSTEM_LIBVPX"; then
         dnl opcodes; actual arch detection is done at runtime.
         VPX_ASFLAGS="-march=armv7-a -mfpu=neon"
         VPX_AS_CONVERSION='$(PERL) $(topsrcdir)/media/libvpx/libvpx/build/make/ads2gas.pl'
-        VPX_ARM_ASM=1
         dnl Building with -mfpu=neon requires either the "softfp" or the
         dnl "hardfp" ABI. Depending on the compiler's default target, and the
         dnl CFLAGS, the default ABI might be neither, in which case it is the
@@ -2325,10 +2323,6 @@ if test -z "$MOZ_SYSTEM_LIBVPX"; then
     if test -n "$VPX_USE_YASM" && test "$OS_ARCH:$CPU_ARCH" != "WINNT:x86_64"; then
       VPX_ASFLAGS="-DPIC"
     fi
-
-    if test -n "$VPX_ARM_ASM"; then
-      AC_DEFINE(VPX_ARM_ASM)
-    fi
 fi
 
 dnl ========================================================
@@ -4146,7 +4140,6 @@ AC_SUBST_LIST(FFVPX_ASFLAGS)
 AC_SUBST(VPX_USE_YASM)
 AC_SUBST_LIST(VPX_ASFLAGS)
 AC_SUBST(VPX_AS_CONVERSION)
-AC_SUBST(VPX_ARM_ASM)
 AC_SUBST(LIBJPEG_TURBO_USE_YASM)
 AC_SUBST_LIST(LIBJPEG_TURBO_ASFLAGS)
 AC_SUBST(MOZ_LIBAV_FFT)