I just checked this on my 7900, running the same firmware.
The service menu still lists the channel cleans, although they have been relocated to below the initfill option instead of above where they were in the past.
To confirm whether the normal channel cleans have had ANC removed will require someone with two colors clogged in different channels. Previous to the firmware change cleaning one color would then trigger another clean in this case because ANC would detect a clog. If they made the change you would manually clean each of the two channels yourself. If you only have one color clogged, the printer should just clean that channel ... this could just mean your ANC circuitry is working correctly and didn't trigger an unnecessary clean, but it does not necessarily mean no ANC was performed. My ANC circuitry has been performing very well .. I've had it set to check before every job and not a single cleaning cycle yet.
Fortunately I can't test this myself, as my 7900 had no clogs again today (over 1 month since a clog, very intermittent use). Perhaps someone who finds themselves with colors in separate channels clogged can report what the printer does not when performing single channel cleans after the firmware update.
So as it stands right now, the official word from epson is this feature has not changed in the firmware update since it is not mentioned in the release notes. However we know they were working on it, and something was done in the ANC/cleaning menu in service mode, so perhaps this is in there and they just didn't officially document it.