Fix warning for simple-object-elf.c.

2017-09-01  Martin Liska  <mliska@suse.cz>

	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Remove duplicite declaration.

From-SVN: r251584

libiberty/ChangeLog

+2017-09-01  Martin Liska  <mliska@suse.cz>
+
+	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
+	Remove duplicite declaration.
+
 2017-08-31  Richard Biener  <rguenther@suse.de>
 
 	PR lto/81968

libiberty/simple-object-elf.c

@@ -1232,7 +1232,6 @@ simple_object_elf_copy_lto_debug_sections (simple_object_read *sobj,
       off_t offset;
       off_t length;
       int ret;
-      const char *errmsg;
       simple_object_write_section *dest;
       off_t flags;
       unsigned char *buf;