Don't always search user search paths.

This setting always triggers a warning in recent Xcodes, and we don't
have any user header search paths anyway.

Author: briancroom

Foundation.xcodeproj/project.pbxproj

@@ -2092,7 +2092,6 @@
 		5B5D88661BBC938800234F36 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_MODULES_AUTOLINK = NO;
 				COMBINE_HIDPI_IMAGES = YES;
@@ -2162,7 +2161,6 @@
 		5B5D88671BBC938800234F36 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_MODULES_AUTOLINK = NO;
 				COMBINE_HIDPI_IMAGES = YES;