smartpm: remove rpm4 patch

smartpm: remove rpm4 patch

The RPM4 support we added to SMART doesn't appear to work, remove
it as part of the removal of RPM4 from OE-Core.

Refresh the smart-add-for-rpm-ignoresize-check.patch which was
applied after smart-rpm4-fixes.patch and doesn't apply cleanly once
that patch is removed.

(From OE-Core rev: e1108fa41742e726aa578d0298fa6397b2663ff3)

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>