Revert "msm: camera: Add state check for sensor power up & down"

This reverts commit 1fbb60852aac81cffab8cd351a9d3b4f78793786.

Change-Id: I50f46b123d377db2b1d08cc184687861e1317ca3
Revert "msm: camera: remove frame delay at start_stream in msm_sensor"

This reverts commit eae482271cc5958f871eb4cea6ce1dcf9b6c8e81.

Change-Id: I9a37b62c4448d867c3b6d3c2b8a4219f4fe3d656