Revert "Rename camera blob"

This reverts commit 9686887c53062d187aa5edab21445f51e8d2ee3e.

Change-Id: I23ea6493be25f1ba488e733a6f181207659973eb
Revert "Camera2: Don't try to cancel focus messages when preview stops"

This reverts commit 7c9742c6af99b5a395fe8b8a2d99e3f9676aa808.

Change-Id: Icf8f4024c92537e1fde1e17191196135e28cbf9a