Updated core
Project: help  39412225c497bc279345025bb6325ec0d0c2ac25
near obsolete SdrCaption dialog has Not Implemented Yet stub

and it's never going to be now, so remove unused WINKEL elements.

The whole SDRATTR_CAPTIONANGLE attribute is under doubt methinks.

Change-Id: Ie51eb8efbeb9a2e70780f2e19ddc57b2fb9a86eb