Remove hack for ancient version of module-init-tools that was added in
Linux 3.0.

Since then module-init-tools was replaced with kmod.

This hack adds an additional indirection, and causes confusing errors
to be printed when depmod fails.

Reverts commit 8fc62e59 ("kbuild: Do not write to builddir in modules_install")
Reverts commit bfe5424a ("kbuild: Hack for depmod not handling X.Y versions")

Link: https://lore.kernel.org/linux-modules/CAK7LNAQMs3QBYfWcLkmOQdbbq7cj=7wWbK=AWhdTC2rAsKHXzQ@mail.gmail.com/Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>