Remove unneeded ignore_column statements for GeoNode

What does this MR do?

Step 2 from https://docs.gitlab.com/ee/development/what_requires_downtime.html#dropping-columns

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

We ignored some columns in %10.3 so these need removing entirely in %10.4

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Has been reviewed by Backend
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• If paid feature, have we considered GitLab.com plan and how it works for groups and is there a design for promoting it to users who aren't on the correct plan

What are the relevant issue numbers?

Closes #4195 (closed)