[RESTRICT AUTOMERGE] docs: Removing obsolee TODO

The TODO was in a Javadoc comment so it was exposed in public docs.
It looks like the TODO was removed from master, and per SME, it's
okay to remove it from RVC too.

Test: make ds-docs-java
Exempt-from-owner-approval: Docs-only change
Bug: 169103613
Change-Id: I7694bbc8fde0e7366db57770ff1792a1d2f3e6c1
Merged-In: I129f96f6ed716e25c476bacbdb38799675919b9a