fdo#63154: Remove SVBT8 from solar.h

Conflicts:
	sw/source/filter/ww8/ww8par2.cxx

Change-Id: I4e500cf0ca89468494fd3f0892839f5ca6cce725
Reviewed-on: https://gerrit.libreoffice.org/7645
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>