Kbuild: clean up marker

Drop Module.markers from cleaning list since marker
is removed.
Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

Makefile

@@ -1151,7 +1151,7 @@ CLEAN_FILES +=	vmlinux System.map \
 MRPROPER_DIRS  += include/config usr/include include/generated
 MRPROPER_FILES += .config .config.old .version .old_version             \
                   include/linux/version.h                               \
-		  Module.symvers Module.markers tags TAGS cscope*
+		  Module.symvers tags TAGS cscope*
 
 # clean - Delete most, but leave enough to build external modules
 #
@@ -1170,7 +1170,7 @@ clean: archclean $(clean-dirs)
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
-		-o -name 'Module.markers' -o -name '.tmp_*.o.*' \
+		-o -name '.tmp_*.o.*' \
 		-o -name '*.gcno' \) -type f -print | xargs rm -f
 
 # mrproper - Delete all generated files, including .config
@@ -1368,7 +1368,6 @@ $(clean-dirs):
 
 clean:	rm-dirs := $(MODVERDIR)
 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \
-                   $(KBUILD_EXTMOD)/Module.markers \
                    $(KBUILD_EXTMOD)/modules.order
 clean: $(clean-dirs)
 	$(call cmd,rmdirs)