Update approver.rb (#4004)
Update approver.rb (#4004)

remove redundancy since the upper loop has changed the current approver's state to WORKFLOW_STATE_APPROVE
ShinjiTanimoto/shirasagi,shirasagi/shirasagi,ShinjiTanimoto/shirasagi,sunny4381/shirasagi,sunny4381/shirasagi,ShinjiTanimoto/shirasagi,shirasagi/shirasagi,sunny4381/shirasagi,shirasagi/shirasagi,sunny4381/shirasagi,ShinjiTanimoto/shirasagi,shirasagi/shirasagi