closes RQA-3913

Overview

NOTE: need to double check that an airGapInPlace takes care of dispensing the air gap amount. If yes, then this PR is correct. if not, then i need to modify the dispense robot state following an airGapInPlace

Test Plan and Hands on Testing

Upload the attached protocol and see that the liquid volume is correct, as outlined in the ticket

RQA 3931.json

Changelog

• remove some remnants of meta: isAirGap
• remove the unnecessary dispense and delay commands that were initially needed to dispense the air gap after an aspirate. but the new airGapInPlace doesn't need it

Risk assessment

med-ish