SoilInfo Location Score: Remove external link to view soil map for non-US sites

[DerekCaelin]

For U.S. sites, we allow the user to view soil maps by feeding the site lat/long into a soil web URL. No equivalent resource exists for Global soil maps, so we are removing this reference for the MVP.

Design

Acceptance criteria

• for non-U.S. sites, remove external link from Soil Info screen, soil info score module