Remove testLibKetamaWeightedCompatLibmemcached test

This test is failing in Apertis OBS because the first hostname associated to 127.0.0.1 is not matching 'localhost'.

For instance, OBS aarch64 build job reports the following hostnames: https://gitlab.apertis.org/pkg/spymemcached/-/jobs/897546#L2095

  [  326s] 127.0.0.1 mp30-ar1-cbg-0-arm64-0
  [  326s] 127.0.0.1 localhost
  [  326s] 127.0.0.2 localhost.

Then the test gets a hostname value of mp30-ar1-cbg-0-arm64-0 and fails as it expects it to be localhost: https://gitlab.apertis.org/pkg/spymemcached/-/jobs/897546#L2980

  [  386s] junit.framework.ComparisonFailure:
           expected:<[localhost/127.0.0.1:11212]>
           but was:<[mp30-ar1-cbg-0-arm64-0/127.0.0.1:11211]>

Let's disable it as it doesn't seem to make any sense in OBS configuration. However, further research should be done to get this test working properly.

Signed-off-by: Ariel D'Alessandro ariel.dalessandro@collabora.com