Removing urls from conf to remove navigation to find a supplier and investment support directory as now in great-cms

[stuart-mindt]

Removing urls from conf to remove navigation to find a supplier and investment support directory as now in great-cms

Workflow

• Ticket exists in Jira https://uktrade.atlassian.net/browse/IGUK-325
• Jira ticket has the correct status.
• A clear/description pull request messaged added.

Reviewing help

• Explains how to test locally, including how to set up appropriate data
• Includes screenshot(s) - ideally before and after, but at least after

Housekeeping

• Added all new environment variables to Vault.
• Cleaned up old feature flags
• Upgraded any vulnerable dependencies.
• I have updated security dependencies
• Python requirements have been re-compiled.
• Frontend assets have been re-compiled.
• I have checked that my PR is using the latest package versions of: directory-api-client, directory-cms-client, directory-components, directory-forms-api-client, directory-healthcheck, directory-validators

Merging

• This PR can be merged by reviewers. (If unticked, please leave for the author to merge)