First I cant say Ive ever tried running without a spark plug and second you wont get condensation in your motor while its running condensation is the result of a gas coming in contact with a surface that absorbs its energy and results in a state change. Sure theres water vapor in the air but the motor is too damned hot to allow such an event.
Sounds more like you ran through a pretty deep puddle and pulled some water up into the intake or your filter or something along those lines.