Remove unused ScrollBarBox from tabpage

This displays an empty rectangle at the upper left of the tabpage.

Change-Id: I8424a3f8ec4896814b135aa2c86012f0b33ee1be
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106480
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
(cherry picked from commit 6df0e538ff05b98e1123c5ad1d77f554007bff12)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106440
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

0 files changed, 0 insertions, 0 deletions