Remove dead code

gcc/fortran/
	* match.c (gfc_match_common): Remove dead variable old_blank_common.

From-SVN: r228458

gcc/fortran/ChangeLog

 2015-10-04  Mikael Morin  <mikael@gcc.gnu.org>
 
+	* match.c (gfc_match_common): Remove dead variable old_blank_common.
+
+2015-10-04  Mikael Morin  <mikael@gcc.gnu.org>
+
 	PR fortran/67758
 	* match.c (gfc_match_common): Delay the common_block pointer
 	assignment after error checking.

gcc/fortran/match.c

@@ -4278,20 +4278,13 @@ match match_common_name (char *name)
 match
 gfc_match_common (void)
 {
-  gfc_symbol *sym, **head, *tail, *other, *old_blank_common;
+  gfc_symbol *sym, **head, *tail, *other;
   char name[GFC_MAX_SYMBOL_LEN + 1];
   gfc_common_head *t;
   gfc_array_spec *as;
   gfc_equiv *e1, *e2;
   match m;
 
-  old_blank_common = gfc_current_ns->blank_common.head;
-  if (old_blank_common)
-    {
-      while (old_blank_common->common_next)
-	old_blank_common = old_blank_common->common_next;
-    }
-
   as = NULL;
 
   for (;;)