[PATCH xserver] xfree86: Don't install module .la files. (#4898)

[Jesse Adkins]

> What I should have been suggesting is to use $(AM_V_at) as it is used in
> several places in the server already.
>
> hw/xfree86/Makefile.in:	$(AM_V_at)rm -f Xorg && $(MAKE) Xorg
>
Should this fix be applied to the other driver patches as well? It
seems like a v2 for this patch set is probably going to be needed at
some point. The commit message is cryptic, the input drivers don't use
moduledir, and some drivers install multiple .so files.

I certainly wouldn't mind, since most of the work could be easily
automated. Even if it were not, I'd like to make sure that this is
100% complete so this bug can be closed for good.