fix missing downloadUrl property on ios

Author: Spencer Thornock

ios/Firestack.xcodeproj/project.pbxproj

@@ -203,7 +203,7 @@
 MTL_ENABLE_DEBUG_INFO = YES;
 ONLY_ACTIVE_ARCH = YES;
 SDKROOT = iphoneos;
-USER_HEADER_SEARCH_PATHS = "${PROJECT_DIR}/../../../ios/Pods/** $(SRCROOT)/../node_modules/react-native/React/** $(SRCROOT)/../../react-native/React/**";
+USER_HEADER_SEARCH_PATHS = "";
 };
 name = Debug;
 };
@@ -238,7 +238,7 @@
 IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 MTL_ENABLE_DEBUG_INFO = NO;
 SDKROOT = iphoneos;
-USER_HEADER_SEARCH_PATHS = "${PROJECT_DIR}/../../../ios/Pods/** $(SRCROOT)/../node_modules/react-native/React/** $(SRCROOT)/../../react-native/React/**";
+USER_HEADER_SEARCH_PATHS = "";
 VALIDATE_PRODUCT = YES;
 };
 name = Release;