staging: wlan-ng: Remove unused struct wlan_ie_tim references

Pointer reference to struct wlan_ie_tim is added as a member
variable of a structure; However, this references is never
used. Remove such unused struct reference. The cleanup also
renders the struct useless; so remove it as well.
Issue identified as part of coccicheck based code analysis.

Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Deepak R Varma <drv@mailo.com>
Link: https://lore.kernel.org/r/36834007587a2e0ef7a782f5919f3a4c756b7840.1667308828.git.drv@mailo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211mgmt.h

@@ -253,16 +253,6 @@ struct wlan_ie_cf_parms {
 	u16 cfp_durremaining;
 } __packed;
 
-/*-- TIM ------------------------------------------*/
-struct wlan_ie_tim {
-	u8 eid;
-	u8 len;
-	u8 dtim_cnt;
-	u8 dtim_period;
-	u8 bitmap_ctl;
-	u8 virt_bm[1];
-} __packed;
-
 /*-- IBSS Parameter Set ---------------------------*/
 struct wlan_ie_ibss_parms {
 	u8 eid;
@@ -309,8 +299,6 @@ struct wlan_fr_beacon {
 	struct wlan_ie_ds_parms *ds_parms;
 	struct wlan_ie_cf_parms *cf_parms;
 	struct wlan_ie_ibss_parms *ibss_parms;
-	struct wlan_ie_tim *tim;
-
 };
 
 /*-- IBSS ATIM ------------------------------------*/