Trim a redundant definition that confuses older compilers.  (Regression testing
against Red Hat 9.)
diff --git a/main.c b/main.c
index b264ec6..56d6eb3 100644
--- a/main.c
+++ b/main.c
@@ -22,6 +22,7 @@
 // global context for this applet.
 
 struct toy_context toys;
+union toy_union toy;
 char toybuf[4096];
 
 struct toy_list *toy_find(char *name)