spi: spi-geni-qcom: Don't initialize completion for normal message

We only use this completion when we're doing something that isn't a
message transfer. For example, changing CS or aborting/canceling a
command. All of those situations properly reinitialize the completion
before sending the GENI the special command to change CS or cancel, etc.
Given that, let's remove the initialization here.

Cc: Girish Mahadevan <[e-mail]>
Cc: Dilip Kota <[e-mail]>
Cc: Alok Chauhan <[e-mail]>
Cc: Douglas Anderson <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-geni-qcom.c

···
 	struct geni_se *se = &mas->se;
 
 	geni_se_select_mode(se, GENI_SE_FIFO);
-	reinit_completion(&mas->xfer_done);
 	ret = setup_fifo_params(spi_msg->spi, spi);
 	if (ret)
 		dev_err(mas->dev, "Couldn't select mode %d\n", ret);