staging:rtl8192u: Remove stale comment - Style

Remove a comment which appears to be from a previous version of code.

This is a coding style change which should have no impact on runtime
code execution.
Signed-off-by: NJohn Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/ieee80211/dot11d.h

@@ -17,8 +17,6 @@ enum dot11d_state {
 };
 
 struct rt_dot11d_info {
-	/* DECLARE_RT_OBJECT(rt_dot11d_info); */
-
 	bool enabled; /* dot11MultiDomainCapabilityEnabled */
 
 	u16 country_ie_len; /* > 0 if country_ie_buf[] contains valid country information element. */