* HBASE-25277 postScannerFilterRow impacts Scan performance a lot in HBase 2.x
1. Added a check for Object class in RegionCoprocessorHost to avoid wrong initialization of hasCustomPostScannerFilterRow
2. Removed dummy implementation of postScannerFilterRow from AccessController, VisibilityController & ConstraintProcessor (which are not required currently)
Signed-off-by Ramkrishna S Vasudevan <ramkrishna@apache.org>
Signed-off-by Anoop Sam John <anoopsamjohn@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
(cherry picked from commit fb6e498b32e48aa606ef5427013fd84452cc762f)
ec8eb653f6