d: remove support for parse.error verbose

Without the history, D should not support this option. Before the
removal, 'detailed' and 'verbose' options generated the same code.

* data/skeletons/lalr1.d: Here.
* doc/bison.texi: Adapt tests to use 'detailed' instead of 'verbose'.
* tests/calc.at: Document it.

data/skeletons/lalr1.d

@@ -690,7 +690,7 @@ m4_popdef([b4_at_dollar])])dnl
   {]b4_parse_error_bmatch(
 [custom], [[
     yylexer.reportSyntaxError(yyctx);]],
-[detailed\|verbose], [[
+[detailed], [[
     if (yyctx.getToken() != ]b4_symbol(empty, kind)[)
     {
       // FIXME: This method of building the message is not compatible
@@ -732,7 +732,7 @@ m4_popdef([b4_at_dollar])])dnl
   }
 
 ]b4_parse_error_bmatch(
-[detailed\|verbose], [[
+[detailed], [[
   private int yysyntaxErrorArguments(Context yyctx, SymbolKind[] yyarg, int yyargn) {
     /* There are many possibilities here to consider:
        - If this state is a consistent state with a default action,