abuild: remove predefined mod splitfunc

It is never and should never be used.

abuild.in

@@ -1151,22 +1151,6 @@ doc() {
 	default_doc
 }
 
-# predefined splitfunc mod
-default_mod() {
-	depends="$kernel $depends_mod"
-	for i in firmware modules; do
-		if [ -d "$pkgdir/lib/$i" ]; then
-			rm -rf "$subpkgdir/lib"
-			mkdir -p "$subpkgdir/lib"
-			mv "$pkgdir/lib/$i" "$subpkgdir/lib"
-		fi
-	done
-}
-
-mod() {
-	default_mod
-}
-
 # predefined splitfunc dev
 default_dev() {
 	local i= j=