Julie,
We are keeping the 210 ITTO-based questions in this separate exam because memorization and ITTO-based questions are becoming less and less important for the exam.
However, we have a number of students who still like to study and be quizzed on the ITTOs. Often, they are experienced project managers but preparing for the PMP exam is their first exposure to PMI and the PMBOK Guide, so this is helpful for them in order to get more familiar with the terms. Also, students whose first language is not English like these ITTO questions in order to get more familiar with the "PM language" in English.
It seems that in your case, you can probably skip them.