added test for removing metadata correctly remove metadata correctly
added test for removing metadata correctly
remove metadata correctly

SEL-Columbia/commcare-hq,qedsoftware/commcare-hq,dimagi/commcare-hq,gmimano/commcaretest,puttarajubr/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,gmimano/commcaretest,qedsoftware/commcare-hq,qedsoftware/commcare-hq,puttarajubr/commcare-hq,puttarajubr/commcare-hq,SEL-Columbia/commcare-hq,qedsoftware/commcare-hq,gmimano/commcaretest,dimagi/commcare-hq,qedsoftware/commcare-hq,SEL-Columbia/commcare-hq,puttarajubr/commcare-hq,dimagi/commcare-hq