feat: only do bitcode for iphone (#376)

Summary:
Bitcode is not needed for `iphonesimulator` - this PR makes bitcode to be included with iOS only. Reduces the package size by ~1GB.

Related to #368

Pull Request resolved: #376

Reviewed By: willholen

Differential Revision: D24031684

Pulled By: Huxpro

fbshipit-source-id: 342b0139d208cdea6c2af2983c894b758a7d7789

utils/build-apple-framework.sh

@@ -28,12 +28,15 @@ fi
 # Utility function to configure an Apple framework
 function configure_apple_framework {
   local build_cli_tools enable_bitcode
+  if [[ $1 == iphoneos ]]; then
+    enable_bitcode="true"
+  else
+    enable_bitcode="false"
+  fi
   if [[ $1 == macosx ]]; then
     build_cli_tools="true"
-    enable_bitcode="false"
   else
     build_cli_tools="false"
-    enable_bitcode="true"
   fi
 
   local cmake_flags=" \