Sync with upstream verilog-mode revision 78e66ba.

Sync with upstream verilog-mode revision 78e66ba.
* lisp/progmodes/verilog-mode.el (verilog-end-of-defun)
(verilog-type-completion, verilog-get-list): Remove unused funcs.
(verilog-get-end-of-defun): Remove unused argument.
(verilog-comment-depth): Remove unused local `e'.
(verilog-read-decls, verilog-read-sub-decls, verilog-read-instants):
Don't pass arg to verilog-get-end-of-defun.