mwifiex: remove unused function parameters

Some function parameters become useless after previous
cleanup changes.

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>
diff --git a/drivers/net/wireless/mwifiex/cfp.c b/drivers/net/wireless/mwifiex/cfp.c
index 07187a4..bb73cfe 100644
--- a/drivers/net/wireless/mwifiex/cfp.c
+++ b/drivers/net/wireless/mwifiex/cfp.c
@@ -75,8 +75,7 @@
  * This function maps an index in supported rates table into
  * the corresponding data rate.
  */
-u32 mwifiex_index_to_data_rate(struct mwifiex_adapter *adapter, u8 index,
-			       u8 ht_info)
+u32 mwifiex_index_to_data_rate(u8 index, u8 ht_info)
 {
 	u16 mcs_rate[4][8] = {
 		{0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e}
@@ -126,7 +125,7 @@
  * This function maps a data rate value into corresponding index in supported
  * rates table.
  */
-u8 mwifiex_data_rate_to_index(struct mwifiex_adapter *adapter, u32 rate)
+u8 mwifiex_data_rate_to_index(u32 rate)
 {
 	u16 *ptr;
 
@@ -265,9 +264,7 @@
 /*
  * This function converts rate bitmap into rate index.
  */
-int
-mwifiex_get_rate_index(struct mwifiex_adapter *adapter, u16 *rate_bitmap,
-		       int size)
+int mwifiex_get_rate_index(u16 *rate_bitmap, int size)
 {
 	int i;