Revert accidental commit to scripts/Makefile.headersinst

Commit 43dfa07fbb6b8bd5b6173a5bab48470f578c8e5b accidentally included a
fix to scripts/Makefile.headersinst which it should not have done. Revert.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
1 file changed