Bug 1515257 - Don't pretend there are ARM assembly sources in libaom. r=firefox-build-system-reviewers,ted

There aren't any, and the code to actually convert them from .asm to gas
that is expected by the moz.build is not even there, so if there were
assembly sources, it would fail to build.

Depends on D14946

Differential Revision: https://phabricator.services.mozilla.com/D14947

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

media/libaom/moz.build

@@ -61,14 +61,7 @@ elif CONFIG['CPU_ARCH'] == 'arm':
     LOCAL_INCLUDES += [ '/media/libaom/config/linux/arm/' ]
     EXPORTS.aom += [ 'config/linux/arm/config/aom_config.h' ]
 
-    arm_asm_files = files['ARM_SOURCES']
-
-    if CONFIG['VPX_AS_CONVERSION']:
-        SOURCES += sorted([
-            "!%s.S" % f if f.endswith('.asm') else f for f in arm_asm_files
-        ])
-    else:
-        SOURCES += sorted(arm_asm_files)
+    SOURCES += files['ARM_SOURCES']
 
     for f in SOURCES:
         if f.endswith('neon.c'):