[2.0] ca-certificates: revert adding 2 new root CAs

[anphel31]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

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Summary

What does the PR accomplish, why was it needed?
Remove 2 CAs added from PR #14595 - '[2.0] Added 2 CAs to ca-certificates-base: 'Microsoft TLS RSA Root G2' and 'Microsoft TLS ECC Root G2''

Change Log

• Change ca-certificates to remove base GAs 'Microsoft TLS RSA Root G2' and 'Microsoft TLS ECC Root G2'

Does this affect the toolchain?

YES

Associated issues

https://microsoft.visualstudio.com/OS/_workitems/edit/59988677
https://portal.microsofticm.com/imp/v5/incidents/details/701260527/summary

Test Methodology

• Buddy build: https://dev.azure.com/mariner-org/mariner/_build/results?buildId=968323&view=results
• Delta build: https://dev.azure.com/mariner-org/mariner/_build/results?buildId=968325&view=results