Dequeues direct connection request during cancel conn operation

When cancel connection request for a device is sent
from an app and if the current pending connection
request's BD address does not match with this device,
the entries of the connection request pending queue
are also checked. If BD address match occurs with an
entry in the connection request queue, the entry is
removed from the queue.

Change-Id: I1bf50a424d86ac53a5201fff742c822f4c8d1c0b