webkit2gtk: build style cmake handles -isystem

srcpkgs/webkit2gtk/template

@@ -63,14 +63,6 @@ else
 	configure_args+=" --disable-x11-target"
 fi
 
-post_configure() {
-	if [ -n "$CROSS_BUILD" ]; then
-		# Fix -isystem issue for cross (See: https://bugs.webkit.org/show_bug.cgi?id=161697)
-		find -name flags.make -exec sed -i "{}" \
-			 -e "s;-isystem ${XBPS_CROSS_BASE}/usr/include ;;g" \;
-	fi
-}
-
 post_install() {
 	vlicense Source/WebKit/LICENSE
 }