[PATCH, build]: Remove -Wno-warning from expmed.c compilation

[Uros Bizjak]

Hello!

Compiling expmed.c has been warning free for some time now.

2013-10-02  Uros Bizjak  <ubizjak@gmail.com>

    * Makefile.in (expmed.o-warn): Remove.

Bootstrapped on x86_64-pc-linux-gnu.

OK for mainline?

Uros.

Index: Makefile.in
===================================================================
--- Makefile.in (revision 203101)
+++ Makefile.in (working copy)
@@ -193,7 +193,6 @@
 # flex output may yield harmless "no previous prototype" warnings
 build/gengtype-lex.o-warn = -Wno-error
 gengtype-lex.o-warn = -Wno-error
-expmed.o-warn = -Wno-error

 # All warnings have to be shut off in stage1 if the compiler used then
 # isn't gcc; configure determines that.  WARN_CFLAGS will be either