fix: remove csp from web service and let proxy service handle it

[jvillafanez]

Description

There is a duplicate CSP being sent. This PR removes the CSP from the web service, so only the one from the proxy service remains.

Related Issue

#10042

Motivation and Context

The duplicate CSP is causing problems

How Has This Been Tested?

Manually tested following the steps in the linked issue. Checked that the response for the root page has only one CSP header (coming from the proxy service)

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud