chore(ct): revert export mount result

[sand4rt]

I checked the MountResult's of the other frameworks and they are not exposed

[github-actions]

Test results for "tests 1"

3 flaky

⚠️ [chromium] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [playwright-test] › ui-mode-test-ct.spec.ts:55:5 › should run component tests after editing test
⚠️ [webkit] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks

21302 passed, 579 skipped
✔️✔️✔️

Merge workflow run.