Avoid importing CoreFoundation in Xcode builds

Author: phausler

XCTest.xcodeproj/project.pbxproj

@@ -491,7 +491,6 @@
 				SUPPORTED_PLATFORMS = "appletvos appletvsimulator iphoneos iphonesimulator macosx watchos watchsimulator";
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
 				TVOS_DEPLOYMENT_TARGET = 10.0;
-				USER_HEADER_SEARCH_PATHS = $BUILT_PRODUCTS_DIR/usr/local/include/CoreFoundation;
 				WATCHOS_DEPLOYMENT_TARGET = 3.0;
 			};
 			name = Debug;
@@ -516,7 +515,6 @@
 				SUPPORTED_PLATFORMS = "appletvos appletvsimulator iphoneos iphonesimulator macosx watchos watchsimulator";
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
 				TVOS_DEPLOYMENT_TARGET = 10.0;
-				USER_HEADER_SEARCH_PATHS = $BUILT_PRODUCTS_DIR/usr/local/include/CoreFoundation;
 				WATCHOS_DEPLOYMENT_TARGET = 3.0;
 			};
 			name = Release;