glr.cc: remove duplicate definition of YYLLOC_DEFAULT

It's already provided by glr.c.

* data/skeletons/glr.cc (b4_post_prologue): Here.

TODO

@@ -7,11 +7,6 @@ Several features are not available in all the backends.
 - token constructors: Java and C
 
 * Short term
-** glr.c: too many definitions of YYLLOC_DEFAULT
-See test 241.
-
-241. headers.at:187: testing Sane headers: %locations c++ %glr-parser ...
-
 ** consistency
 token vs terminal
 

data/skeletons/glr.cc

@@ -98,18 +98,15 @@ b4_locations_if([,
 [yylloc.initialize ();]m4_ifdef([b4_initial_action], [
 m4_defn([b4_initial_action])]))])[
 
-# Hijack the post prologue to insert early definition of YYLLOC_DEFAULT
+# Hijack the post prologue to declare yyerror.
-# and declaration of yyerror.
 ]m4_append([b4_post_prologue],
 [b4_syncline([@oline@], [@ofile@])[
-]b4_yylloc_default_define[
-#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
 ]b4_function_declare([yyerror],
     [static void],b4_locations_if([
     [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp],
                         [yylocationp]],])
     b4_parse_param,
-    [[const char* msg], [msg]])])
+    [[const char* msg], [msg]])])[
 
 
 #undef yynerrs
@@ -158,8 +155,7 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
 #if ]b4_api_PREFIX[DEBUG
     ]m4_ifset([b4_parse_param], [  ], [ :])[yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
 #endif]b4_parse_param_cons[
-  {
+  {}
-  }
 
   ]b4_parser_class_name::~b4_parser_class_name[ ()
   {}