[DIYguy]

Almost certainly not necessary.
When I did mine I left the battery connected.
There is no power to anything that is affected by removing the throttle body or manifold when the ignition is off (or in the case of these cars, asleep).

Of course it may depend upon what you are replacing them with.
If you are putting on newer or different versions of the same parts, or the same parts after cleaning or something, then there is no reason to disconnect the battery for a reset.
If you are putting on something aftermarket, then you might want to disconnect the battery while you are working on it.
Then when you re-connect it later it should re-learn.