Remove ninja special cases for iOS build configurations.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 702135fd54dda83b2fedbea8d113dade39a0a8de..b7a8c3110a24f05c8a198b8339599c28b4825e7d 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -4199,12 +4199,10 @@
             'xcode_settings': {
               'SDKROOT': 'macosx<(mac_sdk)',  # -isysroot
               'MACOSX_DEPLOYMENT_TARGET': '<(mac_deployment_target)',
+              'ARCHS': [
+                'x86_64'
+              ],
             },
-            'conditions': [
-              ['"<(GENERATOR)"!="xcode"', {
-                'xcode_settings': { 'ARCHS': [ 'x86_64' ] },
-              }],
-            ],
           }],
           ['_toolset=="target"', {
             'xcode_settings': {
@@ -4213,13 +4211,6 @@
               # instead set it here for target only.
               'IPHONEOS_DEPLOYMENT_TARGET': '<(ios_deployment_target)',
             },
-            'conditions': [
-              ['target_arch=="armv7" and "<(GENERATOR)"!="xcode"', {
-                'xcode_settings': { 'ARCHS': [ 'armv7' ]},
-              }, {
-                'xcode_settings': { 'ARCHS': [ 'i386' ] },
-              }],
-            ],
           }],
           ['_type=="executable"', {
             'configurations': {
@@ -4651,35 +4642,6 @@
       ],
     }],
   ],
-  'configurations': {
-    # DON'T ADD ANYTHING NEW TO THIS BLOCK UNLESS YOU REALLY REALLY NEED IT!
-    # This block adds *project-wide* configuration settings to each project
-    # file.  It's almost always wrong to put things here.  Specify your
-    # custom |configurations| in target_defaults to add them to targets instead.
-    'conditions': [
-      ['OS=="ios"', {
-        'Debug': {
-          'xcode_settings': {
-            # Enable 'Build Active Architecture Only' for Debug. This
-            # avoids a project-level warning in Xcode.
-            # Note that this configuration uses the default VALID_ARCHS value
-            # because if there is a device connected Xcode sets the active arch
-            # to the arch of the device. In cases where the device's arch is not
-            # in VALID_ARCHS (e.g. iPhone5 is armv7s) Xcode complains because it
-            # can't determine what arch to compile for.
-            'ONLY_ACTIVE_ARCH': 'YES',
-          },
-        },
-        'Release': {
-          'xcode_settings': {
-            # Override VALID_ARCHS and omit armv7s. Otherwise Xcode compiles for
-            # both armv7 and armv7s, doubling the binary size.
-            'VALID_ARCHS': 'armv7 i386',
-          },
-        },
-      }],
-    ],
-  },
   'xcode_settings': {
     # DON'T ADD ANYTHING NEW TO THIS BLOCK UNLESS YOU REALLY REALLY NEED IT!
     # This block adds *project-wide* configuration settings to each project
@@ -4719,6 +4681,7 @@
       ['OS=="ios"', {
         # Target both iPhone and iPad.
         'TARGETED_DEVICE_FAMILY': '1,2',
+        'VALID_ARCHS': 'armv7 i386',
       }],
       ['target_arch=="x64"', {
         'ARCHS': [