gcc: drop libsanitizer patch for GCC12

For some reason GCC 12 ends up hitting the _MIPS_SIM_NABI32 case for
Linux's arch/mips/include/uapi/asm/stat.h when building libsanitizer.
This is basically the opposite of the problem from
commit 1b6ad7cd ("gcc: Bring in fix for libsanitizer on mips64").
Dropping the patch resolves the issue for GCC 12.

Fixes #1741
Signed-off-by: Chris Packham <judge.packham@gmail.com>
(cherry picked from commit 23580a86aaabe601539cb1470bdfbca5513a1ac4)

packages/gcc/12.1.0/0005-libsanitizer-mips64-Set-struct_kernel_stat_sz-to-mat.patch

@@ -1,26 +0,0 @@
-From ac6e15a2776e8fffdbd108213e8690c9f30a7380 Mon Sep 17 00:00:00 2001
-From: Chris Packham <chris.packham@alliedtelesis.co.nz>
-Date: Mon, 16 May 2022 20:55:36 +1200
-Subject: [PATCH] libsanitizer: mips64: Set struct_kernel_stat_sz to match the
- kernel
-
-The kernel's struct stat is 104 bytes when compiling for
-_MIPS_SIM_ABI64. Set struct_kernel_stat_sz to match.
-
-Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
-Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105614
----
- libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h |    2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
-+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
-@@ -83,7 +83,7 @@
- #elif defined(__mips__)
- const unsigned struct_kernel_stat_sz = SANITIZER_ANDROID
-                                            ? FIRST_32_SECOND_64(104, 128)
--                                           : FIRST_32_SECOND_64(144, 216);
-+                                           : FIRST_32_SECOND_64(144, 104);
- const unsigned struct_kernel_stat64_sz = 104;
- #elif defined(__s390__) && !defined(__s390x__)
- const unsigned struct_kernel_stat_sz = 64;