Remove not longer valid FIXME comment.

2018-06-20  Martin Liska  <mliska@suse.cz>

	* lto-symtab.c (lto_symtab_merge_p): Remove not valid
        FIXME comment.

From-SVN: r261798

gcc/lto/ChangeLog

+2018-06-20  Martin Liska  <mliska@suse.cz>
+
+	* lto-symtab.c (lto_symtab_merge_p): Remove not valid
+        FIXME comment.
+
 2018-06-19  Martin Liska  <mliska@suse.cz>
 
 	* lto-partition.c (add_symbol_to_partition_1): Use symbol_summary::get instead

gcc/lto/lto-symtab.c

@@ -564,8 +564,6 @@ lto_symtab_merge_p (tree prevailing, tree decl)
 	}
     }
 
-  /* FIXME: after MPX is removed, use flags_from_decl_or_type
-     function instead.  PR lto/85248.  */
   if (DECL_ATTRIBUTES (prevailing) != DECL_ATTRIBUTES (decl))
     {
       tree prev_attr = lookup_attribute ("error", DECL_ATTRIBUTES (prevailing));