Revert "Fix building kernel gcc plugins with gcc 11.x"

This reverts commit e28becb5. It was
pulled in my mistake via the following merge:

commit 8854d258
(origin/oniro/v5.10/base, oniro/v5.10/base)
Merge: e28becb5 7d51b4c6
Author: Andrei Gherzan <andrei.gherzan@huawei.com>
Date:   Tue Nov 1 14:26:47 2022 +0100
    Merge remote-tracking branch 'yocto/v5.10/base' into
oniro/v5.10/base-up

We drop it as it is applied via the Yocto layers integration.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

scripts/gcc-plugins/Kconfig

@@ -9,6 +9,7 @@ menuconfig GCC_PLUGINS
 	bool "GCC plugins"
 	depends on HAVE_GCC_PLUGINS
 	depends on CC_IS_GCC
+	depends on $(success,$(srctree)/scripts/gcc-plugin.sh $(CC))
 	default y
 	help
 	  GCC plugins are loadable modules that provide extra features to the

scripts/gcc-plugins/Makefile

@@ -22,9 +22,9 @@ always-y += $(GCC_PLUGIN)
 GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
 
 plugin_cxxflags	= -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
-		   -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \
+		   -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \
 		   -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
-		   -ggdb -Wno-narrowing -Wno-unused-variable \
+		   -ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \
 		   -Wno-format-diag
 
 plugin_ldflags	= -shared