[I-02] Unused code

[madMax92221]

The following events are not emitted anywhere. Either emit them in the proper functions or delete them:

• event LogForceSetUserRewardDebt()
• event PolicyApproved()
• event PolicyRejected()
• event InsuranceIssued()
• event RoleAccepted()

[wankhede04]

fixed at commit ab6376e