staging: r8188eu: viq_cnt is write-only

viq_cnt in struct xmit_priv is initialised, incremented and decremented
but never read. Remove viq_cnt and resulting dead code.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Acked-by: Pavel Skripkin <paskripkin@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230109212852.75612-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_xmit.c

@@ -195,7 +195,6 @@ int _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 	pxmitpriv->txirp_cnt = 1;
 
 	/* per AC pending irp */
-	pxmitpriv->viq_cnt = 0;
 	pxmitpriv->voq_cnt = 0;
 
 	pxmitpriv->ack_tx = false;

drivers/staging/r8188eu/include/rtw_xmit.h

@@ -283,7 +283,6 @@ struct	xmit_priv {
 	u8		txirp_cnt;/*  */
 	struct tasklet_struct xmit_tasklet;
 	/* per AC pending irp */
-	int viq_cnt;
 	int voq_cnt;
 	struct __queue free_xmitbuf_queue;
 	struct __queue pending_xmitbuf_queue;

drivers/staging/r8188eu/os_dep/usb_ops_linux.c

@@ -45,9 +45,6 @@ static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
 	case VO_QUEUE_INX:
 		pxmitpriv->voq_cnt--;
 		break;
-	case VI_QUEUE_INX:
-		pxmitpriv->viq_cnt--;
-		break;
 	case HIGH_QUEUE_INX:
 		rtw_chk_hi_queue_cmd(padapter);
 		break;
@@ -113,7 +110,6 @@ u32 rtw_write_port(struct adapter *padapter, u32 addr, u32 cnt, u8 *wmem)
 		pxmitbuf->flags = VO_QUEUE_INX;
 		break;
 	case VI_QUEUE_INX:
-		pxmitpriv->viq_cnt++;
 		pxmitbuf->flags = VI_QUEUE_INX;
 		break;
 	case BE_QUEUE_INX: