Revert "wrc: Use an EOF rule instead of lex_destroy for compatibility with prediluvian flex versions.".

This reverts commit 1405c00ecb.
Wine now requires a new enough flex version.

tools/wrc/parser.h

@@ -34,5 +34,6 @@ extern char *parser_text;
 extern int yy_flex_debug;
 
 int parser_lex(void);
+int parser_lex_destroy(void);
 
 #endif

tools/wrc/parser.l

@@ -588,7 +588,6 @@ L\"			{
                                              isprint((unsigned char)*yytext) ? *yytext : '.', *yytext, YY_START);
 			}
 
-<<EOF>>			current_codepage = -1; yyterminate();
 %%
 
 /* These dup functions copy the enclosed '\0' from

tools/wrc/wrc.c

@@ -304,6 +304,7 @@ static int load_file( const char *input_name, const char *output_name )
 
     ret = parser_parse();
     fclose(parser_in);
+    parser_lex_destroy();
     if (temp_name)
     {
         unlink( temp_name );