net: dpaa2: remove unused code for dprtc

This patch is to removed unused code for dprtc.
This code will be re-added along with more features
of dpaa2-ptp added.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 files changed