ecore-drm: Cleanup ecore-drm shutdown routine

ecore-drm: Cleanup ecore-drm shutdown routine

This patch addresses an issue where when closing Enlightenment, the
shutdown procedure would previously end up calling the same functions
twice. These functions should be called from the ecore_evas drm
shutdown routine as the sprites, inputs, outputs, etc are all called
from the ecore_evas drm init routine.

@fix

Signed-off-by: Chris Michael <cpmichael@osg.samsung.com>