scripts: remove obsolete gcc-ld script

Since commit 8564ed2b ("Kbuild, lto: Add a gcc-ld script to let run gcc
as ld") in 2014, there was not specific work on this the gcc-ld script
other than treewide clean-ups.

There are no users within the kernel tree, and probably no out-of-tree
users either, and there is no dedicated maintainer in MAINTAINERS.

Delete this obsolete gcc-ld script.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/gcc-ld

-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-# run gcc with ld options
-# used as a wrapper to execute link time optimizations
-# yes virginia, this is not pretty
-
-ARGS="-nostdlib"
-
-while [ "$1" != "" ] ; do
-	case "$1" in
-	-save-temps|-m32|-m64) N="$1" ;;
-	-r) N="$1" ;;
-	-[Wg]*) N="$1" ;;
-	-[olv]|-[Ofd]*|-nostdlib) N="$1" ;;
-	--end-group|--start-group)
-		 N="-Wl,$1" ;;
-	-[RTFGhIezcbyYu]*|\
---script|--defsym|-init|-Map|--oformat|-rpath|\
--rpath-link|--sort-section|--section-start|-Tbss|-Tdata|-Ttext|\
---version-script|--dynamic-list|--version-exports-symbol|--wrap|-m)
-		A="$1" ; shift ; N="-Wl,$A,$1" ;;
-	-[m]*) N="$1" ;;
-	-*) N="-Wl,$1" ;;
-	*)  N="$1" ;;
-	esac
-	ARGS="$ARGS $N"
-	shift
-done
-
-exec $CC $ARGS