binutils: drop redundant 'program_name' definition

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=0b398d69acde3377dfbbeb8a4cfe87ae8c8562fa
--- a/binutils/coffdump.c
+++ b/binutils/coffdump.c
@@ -456,8 +456,6 @@ coff_dump (struct coff_ofile *ptr)
     dump_coff_section (ptr->sections + i);
 }
 
-char * program_name;
-
 static void
 show_usage (FILE *file, int status)
 {
--- a/binutils/srconv.c
+++ b/binutils/srconv.c
@@ -1687,8 +1687,6 @@ prescan (struct coff_ofile *otree)
     }
 }
 
-char *program_name;
-
 ATTRIBUTE_NORETURN static void
 show_usage (FILE *ffile, int status)
 {
--- a/binutils/sysdump.c
+++ b/binutils/sysdump.c
@@ -633,8 +633,6 @@ module (void)
     }
 }
 
-char *program_name;
-
 ATTRIBUTE_NORETURN static void
 show_usage (FILE *ffile, int status)
 {
-- 
2.25.0