remove installs on templated services and targets

New yocto is getting more stringent on installation of templated service
and targets.

Templated services are installed by bitbake recipes so there'

remove installs on templated services and targets

New yocto is getting more stringent on installation of templated service
and targets.

Templated services are installed by bitbake recipes so there's no
need to have the WantedBy/RequiredBy in those services.

Here's a summary of the error we get for packages which have templated
services doing an install:
```
ERROR: obmc-phosphor-image-1.0-r0 do_rootfs: Postinstall scriptlets of
['<package>' 'inst returned 1, marking as unpacked only, configuration
required on target']
If the intention is to defer them to first boot,
then please place them into pkg_postinst_ontarget:${PN} ().
Deferring to first boot via 'exit 1' is no longer supported.
```

Tested:
- Confirmed image builds with new yocto and services are still installed
as expected

Change-Id: I56d9ac7a73dfd6bdaa05eba39d890a8af3605d18
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>

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move state manager service files into its repo

OpenBMC is moving towards individual repos hosting and maintaining their
own service files. This allows the corresponding maintainer more control
over

move state manager service files into its repo

OpenBMC is moving towards individual repos hosting and maintaining their
own service files. This allows the corresponding maintainer more control
over their service file and removes the meta-* layer maintainer from
needing to be involved.

Once this is merged, its bump will need to be combined with a change in
the meta-phosphor layer that removes the service files.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: Ib9ebfb16e131bc2743b3fc9fcfdfb7370f455f8f

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