Removed extraneous C++ settings in Node gyp C targets
diff --git a/binding.gyp b/binding.gyp
index 31672b7..c2f9c65 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -137,10 +137,7 @@
       "conditions": [
         ['OS == "mac"', {
           'xcode_settings': {
-            'MACOSX_DEPLOYMENT_TARGET': '10.9',
-            'OTHER_CFLAGS': [
-              '-stdlib=libc++'
-            ]
+            'MACOSX_DEPLOYMENT_TARGET': '10.9'
           }
         }]
       ],
@@ -305,10 +302,7 @@
       "conditions": [
         ['OS == "mac"', {
           'xcode_settings': {
-            'MACOSX_DEPLOYMENT_TARGET': '10.9',
-            'OTHER_CFLAGS': [
-              '-stdlib=libc++'
-            ]
+            'MACOSX_DEPLOYMENT_TARGET': '10.9'
           }
         }]
       ],