[amiwm] Do another pass to clean up build warnings

This is mostly a "dangling if" cleanup, but I did add some other
comments here and there!

kbdmodule.h

@@ -1,94 +1,24 @@
-/* A Bison parser, made by GNU Bison 3.0.4.  */
-
-/* Bison interface for Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
-#ifndef YY_YY_Y_TAB_H_INCLUDED
-# define YY_YY_Y_TAB_H_INCLUDED
-/* Debug traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
+#define ERRORTOKEN 257
+#define META 258
+#define MODIFIER 259
+#define WHEREABOUTS 260
+#define COLON 261
+#define BAR 262
+#define KEYSYM 263
+#define FUNCTION 264
+#ifdef YYSTYPE
+#undef  YYSTYPE_IS_DECLARED
+#define YYSTYPE_IS_DECLARED 1
 #endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Token type.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-  enum yytokentype
-  {
-    ERRORTOKEN = 258,
-    META = 259,
-    MODIFIER = 260,
-    WHEREABOUTS = 261,
-    COLON = 262,
-    BAR = 263,
-    KEYSYM = 264,
-    FUNCTION = 265
-  };
-#endif
-/* Tokens.  */
-#define ERRORTOKEN 258
-#define META 259
-#define MODIFIER 260
-#define WHEREABOUTS 261
-#define COLON 262
-#define BAR 263
-#define KEYSYM 264
-#define FUNCTION 265
-
-/* Value type.  */
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-
-union YYSTYPE
+#ifndef YYSTYPE_IS_DECLARED
+#define YYSTYPE_IS_DECLARED 1
+typedef union
 {
-#line 14 "kbdmodule.y" /* yacc.c:1909  */
-
   int num;
   char *ptr;
   KeySym keysym;
   struct { unsigned int mods; int meta; } modifiers;
   void (*function)(Window);
-
-#line 82 "y.tab.h" /* yacc.c:1909  */
-};
-
-typedef union YYSTYPE YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
+} YYSTYPE;
+#endif /* !YYSTYPE_IS_DECLARED */
 extern YYSTYPE yylval;
-
-int yyparse (void);
-
-#endif /* !YY_YY_Y_TAB_H_INCLUDED  */