staging: rtl8723bs: core: remove redundant zero'ing of counter variable k

The zero'ing of counter variable k is redundant as it is never read
after breaking out of the while loop. Remove it.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200223152840.418439-1-colin.king@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_efuse.c

@@ -244,10 +244,8 @@ u16 	Address)
 		while (!(Bytetemp & 0x80)) {
 			Bytetemp = rtw_read8(Adapter, EFUSE_CTRL+3);
 			k++;
-			if (k == 1000) {
-				k = 0;
+			if (k == 1000)
 				break;
-			}
 		}
 		return rtw_read8(Adapter, EFUSE_CTRL);
 	} else