Remove difficulty check when verifyDB #18
Remove difficulty check when verifyDB #18

Difficulty check is not necessary to guarantee the correctness of
block. Remove it to avoid the restart failure that may caused by
the dynamic difficulty check.

OpenNetworking/gcoin-community,OpenNetworking/gcoin-community,l1204366/gcoin-community,OpenNetworking/gcoin-community,l1204366/gcoin-community,l1204366/gcoin-community,OpenNetworking/gcoin-community,OpenNetworking/gcoin-community,l1204366/gcoin-community,l1204366/gcoin-community,l1204366/gcoin-community,OpenNetworking/gcoin-community,OpenNetworking/gcoin-community