Remove xf8_32wid, it's dead code with no maintainer interest. Also remove

cfb24, since xf8_32wid was the only user.

hw/xfree86/dixmods/Makefile.am

@@ -10,15 +10,9 @@ if XTRAP
 XTRAPMOD = libxtrap.la
 endif
 
-# cfb24 is only used by xf8_32wid, which is only used by sunffb on SPARC
-if BUILD_XF8_32WID
-CFB24MOD = libcfb24.la
-endif
-
 module_LTLIBRARIES = libafb.la \
                      libcfb.la \
                      libcfb16.la \
-                     $(CFB24MOD) \
                      libcfb32.la \
                      libfb.la \
                      libmfb.la \