Remove AdSupport from React.podspec

Summary: Closes facebook#16168

Differential Revision: D5988522

Pulled By: javache

fbshipit-source-id: ac9c393915c249038eb34c4bd4f34ece58fe7975

Author: javache

React.podspec

@@ -137,11 +137,6 @@ Pod::Spec.new do |s|
     ss.source_files         = "Libraries/ActionSheetIOS/*.{h,m}"
   end
 
-  s.subspec "RCTAdSupport" do |ss|
-    ss.dependency             "React/Core"
-    ss.source_files         = "Libraries/AdSupport/*.{h,m}"
-  end
-
   s.subspec "RCTAnimation" do |ss|
     ss.dependency             "React/Core"
     ss.source_files         = "Libraries/NativeAnimation/{Drivers/*,Nodes/*,*}.{h,m}"