build: remove references to cpuinfo

This was a horrible little tool to detect the host CPU at build time.
Forgotten in commit 74df1d8.

Also remove forgotten codec-cfg entry in .gitignore .

.gitignore

@@ -10,8 +10,6 @@
 /version.h
 /codecs.conf.h
 /input/input_conf.h
-/codec-cfg
-/cpuinfo
 /tags
 /TAGS
 /locale

Makefile

@@ -645,7 +645,6 @@ distclean: clean
 	-$(RM) config.log config.mak config.h codecs.conf.h version.h TAGS tags
 	-$(RM) libvo/vdpau_template.c
 	-$(RM) libmpdemux/ebml_types.h libmpdemux/ebml_defs.c
-	-$(RM) $(call ADD_ALL_EXESUFS,cpuinfo)
 
 TAGS:
 	$(RM) $@; find . -name '*.[chS]' -o -name '*.asm' | xargs etags -a

configure

@@ -1146,10 +1146,6 @@ if test "$_as" = auto ; then
   test -z "$_as" && _as=as
 fi
 
-# XXX: this should be ok..
-_cpuinfo="echo"
-
-
 def_fast_64bit='#define HAVE_FAST_64BIT 0'
 arch_all='X86 IA64 SPARC ARM AVR32 SH4 PPC ALPHA MIPS PA_RISC S390 S390X VAX BFIN XTENSA TOMI GENERIC'
 subarch_all='X86_32 X86_64 PPC64'