Remove impossible cond clause.

Merge from Emacs 5a32e5ce48f01180603841194881562ee70fa0db

* lisp/progmodes/verilog-mode.el (verilog-set-auto-endcomments):
Remove can't-happen clause.

Author: mattiase

verilog-mode.el

@@ -5375,10 +5375,7 @@ primitive or interface named NAME."
                                 (goto-char (match-end 0))
                                 (setq there (point))
                                 (setq err nil)
-                                (setq str (concat " // " cntx (verilog-get-expr))))
-
-                               (;-- otherwise...
-                                (setq str " // auto-endcomment confused "))))
+                                (setq str (concat " // " cntx (verilog-get-expr))))))
 
                              ((and
                                (verilog-in-case-region-p) ;-- handle case item differently