Invalid stac-api-spec conformance reporting.

[sharkinsspatial]

The reported conformance for item-search#fields, item-search#query and item-search#sort are currently non-functional but reported in the conformance at ` curl --location --request GET ' https://cmr.earthdata.nasa.gov/stac/LPCLOUD' ` See ` curl --location --request GET ' https://cmr.earthdata.nasa.gov/stac/LPCLOUD/collections/HLSL30.v1.5/items?fields=-geometry' ` and ` curl --location --request GET ' https://cmr.earthdata.nasa.gov/stac/LPCLOUD/collections/HLSL30.v1.5/items?sortby=+properties.datetime' ` as failing examples.