connmgr: unexport the DynamicBanScore mutex.
connmgr: unexport the DynamicBanScore mutex.

decred/dcrd,decred/dcrd,jrick/btcd,jrick/btcd,jrick/btcd,jcmincke/dcrd,jrick/dcrd,jcmincke/dcrd,jcmincke/dcrd,jrick/dcrd