qcacmn: Remove an obsolete lock in host to target layer

After gerrit#2176826, which the change ID is
I615f0e4d6de150924b99b3444cebf00571ddc088, HTCCreditLock is
removed from creation. However, the destroy of this lock is
missed. Need to remove this obsolete lock completely.

CRs-Fixed: 2345978
Change-Id: I4b67aa2a12befcd94a04a8a6acd43e31ae0b837f
2 files changed