obsolete: drop deprecated methods (API) .. api:: The following deprecated methods have been removed from obsolete, with replacements: - _addprecursors() -> _addpredecessors() - obsstore.precursors -> obsstore.predecessors - allprecursors() -> obsutil.allprecursors() - allsuccessors() -> obsutil.allsuccessors() - marker() -> obsutil.marker - getmarkers() -> obsutil.getmarkers() - exclusivemarkers() -> obsutil.exclusivemarkers() - foreground() -> obsutil.foreground() - successorssets() -> obsutil.successorsset() - unstable() -> orphan() - bumped() -> phasedivergent() - divergent() -> contentdivergent()