[PATCH] libertas: make more functions static & remove unused functions

Some functions where declared in header files, but used only once. They are
now static functions.

After doing this, I found out that some functions weren't used at all. I
removed this dead code.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index c3fc074..85b5737 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1045,7 +1045,7 @@
 	return;
 }
 
-void libertas_cleanup_and_insert_cmd(wlan_private * priv, struct cmd_ctrl_node *ptempcmd)
+static void libertas_cleanup_and_insert_cmd(wlan_private * priv, struct cmd_ctrl_node *ptempcmd)
 {
 	unsigned long flags;