APREPRO: Remove unused bison variable

Author: gsjaardema

packages/seacas/libraries/aprepro_lib/apr_parser.cc

@@ -380,7 +380,6 @@ namespace SEAMS {
     int yylen = 0;
 
     // Error handling.
-    int yynerrs_     = 0;
     int yyerrstatus_ = 0;
 
     /// The lookahead symbol.
@@ -1938,7 +1937,6 @@ namespace SEAMS {
     yyerrlab:
       // If not already recovering from an error, report this error.
       if (!yyerrstatus_) {
-        ++yynerrs_;
         context     yyctx(*this, yyla);
         std::string msg = yysyntax_error_(yyctx);
         error(YY_MOVE(msg));