Bug 1817024 - Vendor libwebrtc from 15a82c93d0 - moz.build file updates

CLOBBER

@@ -23,4 +23,4 @@
 # don't change CLOBBER for WebIDL changes any more.
 
 
-Modified build files in third_party/libwebrtc - Bug 1817024 - Vendor libwebrtc from be400e465b
+Modified build files in third_party/libwebrtc - Bug 1817024 - Vendor libwebrtc from 15a82c93d0

third_party/libwebrtc/api/metronome/metronome_gn/moz.build

@@ -30,10 +30,6 @@ LOCAL_INCLUDES += [
     "/tools/profiler/public"
 ]
 
-UNIFIED_SOURCES += [
-    "/third_party/libwebrtc/api/metronome/metronome.cc"
-]
-
 if not CONFIG["MOZ_DEBUG"]:
 
     DEFINES["DYNAMIC_ANNOTATIONS_ENABLED"] = "0"
@@ -135,10 +131,6 @@ if CONFIG["CPU_ARCH"] == "aarch64":
 
 if CONFIG["CPU_ARCH"] == "arm":
 
-    CXXFLAGS += [
-        "-mfpu=neon"
-    ]
-
     DEFINES["WEBRTC_ARCH_ARM"] = True
     DEFINES["WEBRTC_ARCH_ARM_V7"] = True
     DEFINES["WEBRTC_HAS_NEON"] = True
@@ -176,10 +168,6 @@ if CONFIG["CPU_ARCH"] == "arm" and CONFIG["OS_TARGET"] == "Android":
 
 if CONFIG["CPU_ARCH"] == "x86" and CONFIG["OS_TARGET"] == "Android":
 
-    CXXFLAGS += [
-        "-msse2"
-    ]
-
     OS_LIBS += [
         "android_support"
     ]
@@ -196,10 +184,6 @@ if CONFIG["CPU_ARCH"] == "arm" and CONFIG["OS_TARGET"] == "Linux":
 
 if CONFIG["CPU_ARCH"] == "x86" and CONFIG["OS_TARGET"] == "Linux":
 
-    CXXFLAGS += [
-        "-msse2"
-    ]
-
     DEFINES["WEBRTC_ENABLE_AVX2"] = True
     DEFINES["_GNU_SOURCE"] = True