QEMU_USE_SLIRP is no longer needed[1] as adding slirp to
TEST_RUNQEMUPARAMS is sufficient, so remove that.
Setting TEST_SERVER_IP also isn't needed as there's a default value now,
and we disable the package management tests that would use the server
IP. When they work the correct IP can be set.
[1] As of oe-core f4e8650
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
Ross Burton
9f2e78698e