Revert "Filtering Geospatial Data (#2165)"

This reverts commit e5d79cb.

Author: tomkralidis

pygeoapi/provider/xarray_.py

@@ -117,8 +117,6 @@ def get_fields(self):
         if not self._fields:
             for key, value in self._data.variables.items():
                 if key not in self._data.coords:
-                    if not {self.time_field, self.x_field, self.y_field}.issubset(value.dims):
-                        continue
                     LOGGER.debug('Adding variable')
                     dtype = value.dtype
                     if dtype.name.startswith('float'):