qcacld-3.0: Remove ol_rx_queue_len from cds_sched_context

The cds_sched_context contains an ol_rx_queue_len field that is
unused, so remove it.

Change-Id: Ib2a03a61a19424f3cb41c975a886b12f674de247
CRs-Fixed: 2362714

core/cds/inc/cds_sched.h

@@ -123,9 +123,6 @@ typedef struct _cds_sched_context {
 	/* Spinlock to synchronize between tasklet and thread */
 	spinlock_t ol_rx_queue_lock;
 
-	/* Rx queue length */
-	unsigned int ol_rx_queue_len;
-
 	/* Lock to synchronize free buffer queue access */
 	spinlock_t cds_ol_rx_pkt_freeq_lock;