Snippets for gnome-calls 51.1 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/calls/51.1/1.fc46/data/logs/s390x/build.log.

• calls-phone-number-query.c:102:7: warning: variable ‘_match_fields_size_’ set but not used [-Wunused-but-set-variable=]
  

• src/libcalls-vala.a.p/calls-phone-number-query.c:50:20: warning: ‘calls_phone_number_query_properties’ defined but not used [-Wunused-variable]
     50 | static GParamSpec* calls_phone_number_query_properties[CALLS_PHONE_NUMBER_QUERY_NUM_PROPERTIES];
        |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~