pda_power: Remove ac_draw_failed goto and label

A previous patch added the ac_draw_failed goto and label to
pda_power_probe(). The goto would be invoked after a failed call to
regulator_get().

However the way ac_draw is used - always after a check for NULL - suggests
that a failed call to regulator_get() was not fatal.

This patch removes the ac_draw_failed goto and label, partly reverting the
previous patch.

This patch also removes the assignment of an error code to ret after a
failed call to regulator_get(), since the error code is now never used.

Signed-off-by: Paul Parsons <[e-mail]>
Cc: Philipp Zabel <[e-mail]>
Signed-off-by: Anton Vorontsov <[e-mail]>

drivers/power/pda_power.c

···
 	if (IS_ERR(ac_draw)) {
 		dev_dbg(dev, "couldn't get ac_draw regulator\n");
 		ac_draw = NULL;
-		ret = PTR_ERR(ac_draw);
-		goto ac_draw_failed;
 	}
 
 	update_status();
···
 		regulator_put(ac_draw);
 		ac_draw = NULL;
 	}
-ac_draw_failed:
 	if (pdata->exit)
 		pdata->exit(dev);
 init_failed: