read-margin-temp: remove unnecessary -native dependency

sdbusplus-native should no longer be used as a dependency.  In cases
where the `sdbus++` processing tools are needed,
`${PYTHON_PN}-sdbus++-native` can be added as a dependency, but this
repository is not one of those cases.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I0c38b0f5cc93a5145b8d89c6b2aba017695f1c74
1 file changed