Revert^3 "Object.clone() allocates more movable objects"

This reverts commit 1956542906d0b128a86975af009ba4601d02129a.

Reason for revert: Droid Monitor created revert due to this b/363849521. 

Change-Id: Ic56e46bc11b1fd696b82f29782a1d1735ee805a9