As well as any other stray instances of mic in the codebase that can
be removed.

We don't really need to carry around legacy naming, and the history is
in git.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

Remove obsolete comment.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

wic doesn't mount anything, so can't have a mount error; rename it to
something more appropriate.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

It's actually a container for disks and partitions, and wic doesn't
mount anything, so rename it to match what it really is.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

The wic code inherited a basic image-creation flow based on installing
packages, but wic doesn't actually install anything, so rename parts
of the code dealing with installing to something more appropriate.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

The wic code inherited a basic image-creation flow based on mounting
loop devices, but wic doesn't actually mount anything, so rename parts
of the code dealing with mounting to something more appropriate, and
remove related unused code.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

It doesn't do anything we need, so remove it and fix up callers/base
classes.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

Also fix up users such as imager functions.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

wic doesn't use a lot of ParitionedMount, so remove it.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>

wic doesn't use it, so remove it.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>