[PATCH, c-family]: Remove unused variables from c_common_write_pch

[Uros Bizjak]

Hello!

2012-07-01  Uros Bizjak  <ubiz...@gmail.com>

        * c-pch.c (c_common_write_pch): Remove unused variables.

Tested on x86_64-pc-linux-gnu, committed to mainline SVN.

Uros.

Index: c-pch.c
===================================================================
--- c-pch.c     (revision 189099)
+++ c-pch.c     (working copy)
@@ -169,9 +169,6 @@ pch_init (void)
 void
 c_common_write_pch (void)
 {
-  char *buf;
-  long written;
-
   timevar_push (TV_PCH_SAVE);
 
   targetm.prepare_pch_save ();