Revert "Add adaptation option for VBR."

This reverts commit 869d4ca51957614dcf5093ebb9e322cc8a8405ca.

This breaks the build via conflict with
e18edd5eb651f9b7563cbd829744807402bfe0d8.

Change-Id: If544b99e367a449452834eb8cce600f58c34ec0d