WaE: unused variable 'aRet'

(cherry picked from commit 05fad0744c81a359c5cadb3f5a3c20551677db23)
Signed-off-by: Tor Lillqvist <tml@collabora.com>

Change-Id: Ieef0fec21504518e49b78cd49aa643eb545c3100
Reviewed-on: https://gerrit.libreoffice.org/8755
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>