qcacmn: Remove filling mgmt_ctrl frame buffer for NON TLV payload

Reverting the change where mgmt ctrl frame buffer was assinged NULL for
NONTLV payload case as this check is handled later in the same path.

Change-Id: Icccfb401fe34da593198bac27650139654021636
CRs-Fixed: 2276923

dp/wifi3.0/dp_htt.c

@@ -2514,8 +2514,6 @@ static struct ppdu_info *dp_htt_process_tlv(struct dp_pdev *pdev,
 				(uint32_t *)((uint8_t *)tlv_buf + tlv_length);
 			length -= (tlv_length);
 			continue;
-		} else {
-			pdev->mgmtctrl_frm_info.mgmt_buf = NULL;
 		}
 
 		ppdu_info = dp_get_ppdu_desc(pdev, ppdu_id, tlv_type);