[templates][xs]: remove unused data.html (a copy over from data.okfn.org that was never used).
[templates][xs]: remove unused data.html (a copy over from data.okfn.org that was never used).

frictionlessdata/dpr-api,anuveyatsu/dpr-api,frictionlessdata/dpr-api,anuveyatsu/dpr-api,anuveyatsu/dpr-api,frictionlessdata/dpr-api