Change ScheduleCandidateParentsForNormalPeer implement.
Remove TaskStateLeave event in task GC.
Implement AnnouncePeer in service v2.
Signed-off-by: Gaius <gaius.qi@gmail.com>
Correct grpc error from codes.Unknow to codes.Internal in gorm
operation. Implement StatPeer and LeavePeer interface in v2 version of
grpc.
Signed-off-by: Gaius <gaius.qi@gmail.com>