Revert^3 "Wait for LauncherModel loaded in waitForLauncherInitialized"

This reverts commit 503ce966efb399b81e422b71c3e51f823c26fb67.

Reason for revert: Culprit for test breakages in b/334995023. Will be verifying through ABTD for confirmation and before submitting the revert.

Change-Id: Id8707cb2074b4f00ec332ebb14deb7d143ff1bbb
3 files changed