The ApplyDiffWithDiffer function was marked as deprecated,
with PrepareStagedLayer being the recommended replacement.
Its implementation was just a wrapper around PrepareStagedLayer.
Remove the deprecated function from the Store and LayerStore
interfaces and its implementation.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
There is no public way to obtain implementations of these interfaces; so
replace the public interfaces with private ones, to make it clear that we
_can_ modify them.
For formal API compatibility, preserve the old interface definitions
as copies.
Should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>