bug#35062: [PATCH v2] min_cols/rows is always 0, remove noop actions

[Eli Zaretskii]

> From: Konstantin Kharlamov <Hi-Angel@yandex.ru>
> Date: Tue,  2 Apr 2019 03:23:27 +0300
> 
> * src/gtkutil.c:
>     remove "always false" comparison
>     remove multiplication by zero, it's a noop anyway
>     remove min_cols and min_rows as it's now unused
> 
> Fixes LGTM warnings:
>     * Comparison is always false because min_cols <= 0.
>     * Comparison is always false because min_rows <= 0.
> ---
> v2: remove the min_rows/min_cols whatsoever

Thanks, pushed.  Please in the future write the commit log messages in
the ChangeLog-like style, see CONTRIBUTE for the details.  I did that
this time, you can look at what I pushed to see an example of that
style in action.