revert changes to main init.rc file

Move these to the Omni init, there's no need to have them here.

Revert "init: added missing permissions"
This reverts commit 012c4de62a414388aaa6193a5b1797e9bd02901c.

Revert "init: fixup cpufreq permissions"
This reverts commit c20a2550bd9c0b5311fe5aba716e8e885b9e2a56.

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: I005c8a908edceda03a54e8ea5da31e5b3474b5cd