gcc: Drop no longer needed patch

This patch was mentioned upstream a long time ago:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47256

Changes from gcc 10 onward mean it is no longer needed as mentioned in the
above bug report. Drop the patch.

(From OE-Core rev: 6fca075a8d87d033359f81d476c8506df66ad53d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-11.2.inc

@@ -34,7 +34,6 @@ SRC_URI = "\
            file://0002-gcc-poison-system-directories.patch \
            file://0004-64-bit-multilib-hack.patch \
            file://0005-optional-libstdc.patch \
-           file://0006-COLLECT_GCC_OPTIONS.patch \
            file://0007-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch \
            file://0009-cpp-honor-sysroot.patch \
            file://0010-MIPS64-Default-to-N64-ABI.patch \

meta/recipes-devtools/gcc/gcc/0006-COLLECT_GCC_OPTIONS.patch

@@ -1,35 +0,0 @@
-From 127716a32a11ca2a6b3aac068054bfc69c4dcfd8 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Fri, 29 Mar 2013 09:16:28 +0400
-Subject: [PATCH] COLLECT_GCC_OPTIONS
-
-This patch adds --sysroot into COLLECT_GCC_OPTIONS which is used to
-invoke collect2.
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
-Upstream-Status: Pending
----
- gcc/gcc.c | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
-diff --git a/gcc/gcc.c b/gcc/gcc.c
-index be7630ffd8c..1bc45285384 100644
---- a/gcc/gcc.c
-+++ b/gcc/gcc.c
-@@ -5383,6 +5383,15 @@ set_collect_gcc_options (void)
- 		sizeof ("COLLECT_GCC_OPTIONS=") - 1);
- 
-   first_time = TRUE;
-+#ifdef HAVE_LD_SYSROOT
-+  if (target_system_root_changed && target_system_root)
-+    {
-+      obstack_grow (&collect_obstack, "'--sysroot=", sizeof("'--sysroot=")-1);
-+      obstack_grow (&collect_obstack, target_system_root,strlen(target_system_root));
-+      obstack_grow (&collect_obstack, "'", 1);
-+      first_time = FALSE;
-+    }
-+#endif
-   for (i = 0; (int) i < n_switches; i++)
-     {
-       const char *const *args;