staging: rtl8188eu: remove unused variables from hal/rtl8188e_cmd.c

Remove set but unused variables from within the file hal/rtl8188e_cmd.c
in the function rtl8188e_set_FwMediaStatus_cmd, as they are triggering
kernel test robot warnings.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210615223607.13863-7-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c

@@ -177,12 +177,8 @@ void rtl8188e_set_FwPwrMode_cmd(struct adapter *adapt, u8 Mode)
 
 void rtl8188e_set_FwMediaStatus_cmd(struct adapter *adapt, __le16 mstatus_rpt)
 {
-	u8 opmode, macid;
 	u16 mst_rpt = le16_to_cpu(mstatus_rpt);
 
-	opmode = (u8)mst_rpt;
-	macid = (u8)(mst_rpt >> 8);
-
 	FillH2CCmd_88E(adapt, H2C_COM_MEDIA_STATUS_RPT, sizeof(mst_rpt), (u8 *)&mst_rpt);
 }