iwlwifi: remove redundant assignment to variable bufsz

The variable bufsz is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

@@ -2582,7 +2582,7 @@ static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	char *buf;
 	int pos = 0, i, ret;
-	size_t bufsz = sizeof(buf);
+	size_t bufsz;
 
 	bufsz = sizeof(char) * 121 * trans->num_rx_queues;