build: ensure React.xcodeproj has no public headers

This prevents Xcode from generating a generic archive, which is not what we want.

Author: aleclarson

React/React.xcodeproj/project.pbxproj

@@ -2219,6 +2219,9 @@
 				3D80DA191DF820620028D040 /* RCTImageLoader.h in Headers */,
 				C654505E1F3BD9280090799B /* RCTManagedPointer.h in Headers */,
 				13134C941E296B2A00B9F3CB /* RCTObjcExecutor.h in Headers */,
+				3D80DA201DF820620028D040 /* RCTAssert.h in Headers */,
+				3D80DA2F1DF820620028D040 /* RCTInvalidating.h in Headers */,
+				3D80DA341DF820620028D040 /* RCTLog.h in Headers */,
 				D49593E0202C937C00A7694B /* RCTMenuManager.h in Headers */,
 				199B8A6F1F44DB16005DEF67 /* RCTVersion.h in Headers */,
 				3D80DA1A1DF820620028D040 /* RCTImageStoreManager.h in Headers */,
@@ -2229,7 +2232,6 @@
 				3D80DA1E1DF820620028D040 /* RCTNetworkTask.h in Headers */,
 				657734841EE834C900A0E9EA /* RCTInspectorDevServerHelper.h in Headers */,
 				3D80DA1F1DF820620028D040 /* RCTPushNotificationManager.h in Headers */,
-				3D80DA201DF820620028D040 /* RCTAssert.h in Headers */,
 				3D80DA211DF820620028D040 /* RCTBridge.h in Headers */,
 				13F880381E296D2800C3C7A1 /* JSCWrapper.h in Headers */,
 				3D80DA221DF820620028D040 /* RCTBridge+Private.h in Headers */,
@@ -2256,7 +2258,6 @@
 				3D80DA2D1DF820620028D040 /* RCTFrameUpdate.h in Headers */,
 				59EDBCA91FDF4E0C003573DE /* RCTScrollContentShadowView.h in Headers */,
 				3D80DA2E1DF820620028D040 /* RCTImageSource.h in Headers */,
-				3D80DA2F1DF820620028D040 /* RCTInvalidating.h in Headers */,
 				598FD1971F817336006C54CB /* RCTModalManager.h in Headers */,
 				599FAA3A1FB274980058CCF6 /* RCTSurfaceDelegate.h in Headers */,
 				9936F3381F5F2F480010BF04 /* PrivateDataBase.h in Headers */,
@@ -2267,7 +2268,6 @@
 				3D80DA321DF820620028D040 /* RCTJSStackFrame.h in Headers */,
 				130443DC1E401AF400D93A67 /* RCTConvert+Transform.h in Headers */,
 				3D80DA331DF820620028D040 /* RCTKeyCommands.h in Headers */,
-				3D80DA341DF820620028D040 /* RCTLog.h in Headers */,
 				3D80DA351DF820620028D040 /* RCTModuleData.h in Headers */,
 				3D80DA361DF820620028D040 /* RCTModuleMethod.h in Headers */,
 				3D80DA371DF820620028D040 /* RCTMultipartDataTask.h in Headers */,