remove 'resolve' test binary
the 'resolve' binary was added for testing dns_client as part of the export library. the export libraries are no longer supported, and tests using 'delv' provide the same coverage, so 'resolve' can be removed now.
the 'resolve' binary was added for testing dns_client as part of the export library. the export libraries are no longer supported, and tests using 'delv' provide the same coverage, so 'resolve' can be removed now.