[PATCH 2/3] bfin/gas: drop bfin_pic_flag

It's only ever written to.

--- a/gas/config/tc-bfin.c
+++ b/gas/config/tc-bfin.c
@@ -52,7 +52,6 @@ FILE *errorf;
 #endif
 
 static flagword bfin_flags = DEFAULT_FLAGS | DEFAULT_FDPIC;
-static const char *bfin_pic_flag = DEFAULT_FDPIC ? "-mfdpic" : NULL;
 
 /* Blackfin specific function to handle FD-PIC pointer initializations.  */
 
@@ -410,12 +409,10 @@ md_parse_option (int c ATTRIBUTE_UNUSED,
 
     case OPTION_FDPIC:
       bfin_flags |= EF_BFIN_FDPIC;
-      bfin_pic_flag = "-mfdpic";
       break;
 
     case OPTION_NOPIC:
       bfin_flags &= ~(EF_BFIN_FDPIC);
-      bfin_pic_flag = 0;
       break;
     }