sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()

All device_schedule_callback_owner() users are converted to use
device_remove_file_self().  Remove now unused
{sysfs|device}_schedule_callback_owner().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/base/core.c
Simple merge

diff --cc fs/sysfs/file.c
Simple merge

diff --cc include/linux/device.h
Simple merge

diff --cc include/linux/sysfs.h
Simple merge