V547 Expression is always false. Probably the '||' operator should be used here.

Was like that since commit df64bd53.

Trying to fix it by restoring the intended logic (|| instead of && to disallow
setting stylesheets for Para or Page) breaks several tests in
CppunitTest_sd_import_tests; apparently the code relies on these families
getting stylesheets. So just drop the non-functional (always false) condition.

Change-Id: Ia547c089ba0ed4ae879ede89043aa737e4409a75
Reviewed-on: https://gerrit.libreoffice.org/63234
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>