ath11k: Remove redundant assignment to variable fw_size

Variable fw_size is being assigned a value that is never read and
being re-assigned a new value in the next statement. The assignment
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Fixes: 336e7b53 ("ath11k: clean up BDF download functions")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006105529.1011239-1-colin.king@canonical.com

drivers/net/wireless/ath/ath11k/qmi.c

@@ -2135,7 +2135,6 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
 
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi bdf_type %d\n", bdf_type);
 
-	fw_size = bd.len;
 	fw_size = min_t(u32, ab->hw_params.fw.board_size, bd.len);
 
 	ret = ath11k_qmi_load_file_target_mem(ab, bd.data, fw_size, bdf_type);