kbuild: remove redundant cleanups in scripts/link-vmlinux.sh

These are cleaned by the top Makefile.

vmlinux.o and .vmlinux.d matches the '*.[aios]' and '.*.d' patterns
respectively.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)

scripts/link-vmlinux.sh

@@ -309,8 +309,6 @@ cleanup()
 	rm -f System.map
 	rm -f vmlinux
 	rm -f vmlinux.map
-	rm -f vmlinux.o
-	rm -f .vmlinux.d
 	rm -f .vmlinux.objs
 	rm -f .vmlinux.export.c
 }