qcacmn: Delete unnecessary print "failed to post to sch queue"

Delete print "failed to post to QDF_MODULE_ID_SCAN" as it doesn't
gives any useful info. How many times failure has happened can be
read from __sched_dup_fail_count.

Change-Id: Id4ec411d5a32f09c971330e860b50d1a91e7c70b
CRs-Fixed: 2326611
1 file changed