Revert "CameraWrapper: ISO modes and exposure compensation support"

This reverts commit ea2e7a0b00978a9862531cae44c879012c5dcea6.
Revert "Camera wrapper"

This reverts commit 4667c86623628bd668d7042bcbe32860beef9248.
Fix overlays for now

Change-Id: I804c4197682f376903ff417a10788f0f7301775d
Use the default toolchain for now

Change-Id: I951a2a38326adc01f45d133aaa9ed6217d3992c0
Revert "Audio HAL wrappers"

This reverts commit f732d360a1f3670bb26f44b6f7c714de4c6fe753.