Remove unnecessary own compare-specific Papyrus label provider service

This own compare-specific label provider also prevents custom label
providers for Papyrus-based products from being selected, as the
compare-specific one always takes precedence when we ask for a label
provider in the compare context.

Change-Id: Ib5f6f0d0ed9101b31f60f9330233f22affaac1cc
Signed-off-by: Philip Langer <planger@eclipsesource.com>
4 files changed