Revert "Fix testRegisterComponentCallbacksOnWindowContext flaky"

This reverts commit edf1b37a0821b3bc1b0384386ded3cd3bad81be9.

Reason for revert: ~2.49 seconds of BootTime regression b/230022846

Change-Id: Icaddb7aa21b95ad6f9f589528fe893ae8d5c9c93
Exempt-From-Owner-Approval: see go/perf-revert-first
6 files changed