Revert "i2c: Mark adapter devices with pm_runtime_no_callbacks"

This reverts commit aba636b8 which is
commit 6ada5c1e upstream.

This is being reverted because it fixes a regression that was introduced
in 4.0 and does not affect 3.16 kernel.

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Beata Michalska <b.michalska@samsung.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

drivers/i2c/i2c-core.c

@@ -1252,8 +1252,6 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 
 	dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name);
 
-	pm_runtime_no_callbacks(&adap->dev);
-
 #ifdef CONFIG_I2C_COMPAT
 	res = class_compat_create_link(i2c_adapter_compat_class, &adap->dev,
 				       adap->dev.parent);