Merge pull request #195 from phausler/avoid_importing_CoreFoundation

Avoid importing CoreFoundation in Xcode builds

Author: phausler

XCTest.xcodeproj/project.pbxproj

@@ -507,7 +507,6 @@
 				SWIFT_VERSION = 4.0;
 				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;
@@ -534,7 +533,6 @@
 				SWIFT_VERSION = 4.0;
 				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;