Get rid of 'matchname'; it's too surprising to have the menu change during

client search as different potential str matches are cycled through. If there's
interest, the only string that doesn't exist in the listing is the window's
class - that can be added of course, but it makes the line too long imho.

calmwm.h

@@ -165,7 +165,6 @@ struct client_ctx {
 	struct name_q		 nameq;
 	char			*name;
 	char			*label;
-	char			*matchname;
 	XClassHint		ch;
 	XWMHints		*wmh;
 };