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

This reverts commit 1405c00ecbcf5509c9475759b8230c019070b663.
Wine now requires a new enough flex version.

tools/wrc/wrc.c

diff --git a/tools/wrc/wrc.c b/tools/wrc/wrc.c
index 7dd91fb..3c7b176 100644
--- a/tools/wrc/wrc.c
+++ b/tools/wrc/wrc.c
@@ -304,6 +304,7 @@
 
     ret = parser_parse();
     fclose(parser_in);
+    parser_lex_destroy();
     if (temp_name)
     {
         unlink( temp_name );