c++, d, java: remove yyerrcode

[Akim Demaille]

commit 6f92a7f664470b87d65a9800fc50baa067308fc9
Author: Akim Demaille <address@hidden>
Date:   Sat Nov 30 17:27:17 2019 +0100

    c++, d, java: remove yyerrcode
    
    It is not used at all.  We will remove it also from yacc.c, but
    later (see TODO).
    
    * data/skeletons/lalr1.cc, data/skeletons/lalr1.d,
    * data/skeletons/lalr1.java (yyerrcode_):
    Remove.

diff --git a/data/skeletons/lalr1.cc b/data/skeletons/lalr1.cc
index 121b524d..0c249aa6 100644
--- a/data/skeletons/lalr1.cc
+++ b/data/skeletons/lalr1.cc
@@ -405,7 +405,6 @@ m4_define([b4_shared_declarations],
       yynnts_ = ]b4_nterms_number[,  ///< Number of nonterminal symbols.
       yyfinal_ = ]b4_final_state_number[, ///< Termination state number.
       yyterror_ = 1,
-      yyerrcode_ = 256,
       yyntokens_ = ]b4_tokens_number[  ///< Number of tokens.
     };
 
diff --git a/data/skeletons/lalr1.d b/data/skeletons/lalr1.d
index 9885ebd9..cfb944fc 100644
--- a/data/skeletons/lalr1.d
+++ b/data/skeletons/lalr1.d
@@ -838,7 +838,6 @@ m4_popdef([b4_at_dollar])])dnl
   private static immutable int yyempty_ = -2;
   private static immutable int yyfinal_ = ]b4_final_state_number[;
   private static immutable int yyterror_ = 1;
-  private static immutable int yyerrcode_ = 256;
   private static immutable int yyntokens_ = ]b4_tokens_number[;
 
   private static immutable int yyuser_token_number_max_ = 
]b4_user_token_number_max[;
diff --git a/data/skeletons/lalr1.java b/data/skeletons/lalr1.java
index 08e8f58b..239f0052 100644
--- a/data/skeletons/lalr1.java
+++ b/data/skeletons/lalr1.java
@@ -1033,7 +1033,6 @@ b4_dollar_popdef[]dnl
   private static final int yyempty_ = -2;
   private static final int yyfinal_ = ]b4_final_state_number[;
   private static final int yyterror_ = 1;
-  private static final int yyerrcode_ = 256;
   private static final int yyntokens_ = ]b4_tokens_number[;
 
   private static final int yyuser_token_number_max_ = 
]b4_user_token_number_max[;