mfd: remove IRQF_SAMPLE_RANDOM which is now a no-op

With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/tps65010.c

@@ -563,8 +563,7 @@ static int tps65010_probe(struct i2c_client *client,
 	 */
 	if (client->irq > 0) {
 		status = request_irq(client->irq, tps65010_irq,
-			IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
-			DRIVER_NAME, tps);
+				     IRQF_TRIGGER_FALLING, DRIVER_NAME, tps);
 		if (status < 0) {
 			dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
 					client->irq, status);