wtp.c: Drop the static get_border declaration
wtp.c: Drop the static get_border declaration

get_border() was removed earlier, drop the declaration to silence a
compiler warning.

Signed-off-by: Gergely Nagy <6780fac3b38619ac20422286e4110a70dbba2203@madhouse-project.org>

martindale/core,ionux/core-2