pHelpWin is always false,
array sizes can be checked at compile time

Change-Id: I945ede9432b4927b30c31018a1420396176ecb94
Reviewed-on: https://gerrit.libreoffice.org/26518Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>