mwifiex: remove redundant scan operation

It should have been removed by commit "mwifiex: use cfg80211 dynamic
scan..." (7c6fa2a843..) after adding code to avoid an extra scan
during association because scan entries are valid for 15 seconds in
cfg80211 stack.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/cfg80211.c

@@ -923,12 +923,6 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 		}
 	}
 done:
-	/* Do specific SSID scanning */
-	if (mwifiex_request_scan(priv, &req_ssid)) {
-		dev_err(priv->adapter->dev, "scan error\n");
-		return -EFAULT;
-	}
-
 	/*
 	 * Scan entries are valid for some time (15 sec). So we can save one
 	 * active scan time if we just try cfg80211_get_bss first. If it fails