Revert "Bug 986716 - Personatestuser.org is timing out"

This reverts commit a970a22cceab5537dae680b9a172468602d901c7.
Revert "Bug 982260 - Gaia-integration tests on TBPL fail with: TEST-UNEXPECTED-FAIL | Contacts > Details Merging 15 contacts"

This reverts commit 3ba3079118b95b84d12e0e0a8555d329da4fe4b9.
Merge pull request #17470 from 6a68/bug-986716-reenable-tests

Revert "Bug 986716 - Personatestuser.org is timing out"