mwifiex: remove redundant local variables and comments

Remove some local variables (mainly function return values)
that are used only once. Also, one dummy function and some
wordy comments are removed.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 1b79a5a..fc2c0c5 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -71,7 +71,6 @@
 static int mwifiex_init_priv(struct mwifiex_private *priv)
 {
 	u32 i;
-	int ret = 0;
 
 	priv->media_connected = false;
 	memset(priv->curr_addr, 0xff, ETH_ALEN);
@@ -139,9 +138,7 @@
 
 	priv->scan_block = false;
 
-	ret = mwifiex_add_bss_prio_tbl(priv);
-
-	return ret;
+	return mwifiex_add_bss_prio_tbl(priv);
 }
 
 /*