[mojosetup] Fix unused variable warnings in the ncurses plugin.

[Francois Gouget]

On Mon, 10 Aug 2020, Francois Gouget wrote:

> The getmaxyx() macro always returns a width and height so use a
> subterfuge to silence the compiler warning when we only need one of
> them.

I will submit a better fix for this one.


-- 
Francois Gouget <fgouget at codeweavers.com>