iOS: Always build H264 HW encoder/decoder

webrtc/build/common.gypi

Index: webrtc/build/common.gypi
diff --git a/webrtc/build/common.gypi b/webrtc/build/common.gypi
index 0ec953f00d1bf38b8ef055da450d71d0b0390cd4..849b71f8003ae4a626848832a7cdf8a74c93f609 100644
--- a/webrtc/build/common.gypi
+++ b/webrtc/build/common.gypi
@@ -163,10 +163,6 @@
     # Disable this to skip building source requiring GTK.
     'use_gtk%': 1,
 
-    # Enable this to use HW H.264 encoder/decoder on iOS/Mac PeerConnections.
-    # Enabling this may break interop with Android clients that support H264.
-    'use_objc_h264%': 0,
-
     # Enable this to prevent extern symbols from being hidden on iOS builds.
     # The chromium settings we inherit hide symbols by default on Release
     # builds. We want our symbols to be visible when distributing WebRTC via
@@ -447,11 +443,6 @@
           'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
         }
       }],
-      ['OS=="ios" and use_objc_h264==1', {
-        'defines': [
-          'WEBRTC_OBJC_H264',
-        ],
-      }],
       ['OS=="linux"', {
         'defines': [
           'WEBRTC_LINUX',