Revert "Create token for all nested intents of a top level intent."

This reverts commit 0a9db7c8.

Reason for revert: Likely culprit for b/378003997  - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: I00d8e7c1ad5387c77220c228702a169db8e1a92f