I never knew that the day before Halloween was a day of fast and complete abstinence, was that ever done away with? All for it mind you, just had not heard of it until this past Sunday at Mass

Halloween usually, but not the day before Halloween.

But this year Halloween (the Vigil of All Saints) is moved to October 30 to make room for the Feast of Christ the King which falls on October 31 this year. But although that important "vigil" is moved, you don't fast on such moved vigils. When a vigil falls on a Sunday, there is no fasting. When Christmas Day is on a Monday, for example. You don't "anticipate" the vigil is the technical term -- fasting 2 days in advance for a feast. 

Halloween is the most famous or celebrated "vigil" but just because it's been moved, the fact is that All Saints Day is Nov 1st. You don't fast 2 days in advance for a feast -- that is the textbook definition of "anticipating the vigil".

And the Church never commands you to fast on Sunday. Ever.

My error, meant to state fasting on Halloween this year due to the vigil of All Saints falling on a Sunday,  so it’s transferred to the previous Saturday (which happens to be Halloween)…I’m prone to error from time to time

According to the laws in place in 1962:
https://sspx.org/en/rules-fast-and-abstinence

Some further clarifications to universal laws
There are few more distinctions to take into account fasting and abstaining when a usual fast day was in concurrence with a Sunday (always a non-fast day):

• Sundays throughout the year and Holy Days of Obligation outside of Lent cancelled the fasting and/or abstinence of any penitential day which coincided.
• If a fast-day Vigil fell on Sunday, the fasting and abstinence associated with the Vigil were not anticipated on the Saturday, but dropped altogether that year.

The Priests at the Church I attend tend to follow pre-1962, possibly that's why they commented fast and complete abstinence for this Saturday? I apologize if I'm beating a dead horse here, I tend to get confused with what rules established in what year apply now

The Priests at the Church I attend tend to follow pre-1962, possibly that's why they commented fast and complete abstinence for this Saturday? I apologize if I'm beating a dead horse here, I tend to get confused with what rules established in what year apply now

They are mistaken.  Even in the "pre 55" fast and abstinence rules, the fast and abstinence do not transfer if the Vigil falls on a Sunday and must be transferred to Saturday.

Some of the "pre 55" calendars for this year have this Saturday marked as a day of fast and abstinence, but the calendars are incorrect.  

I very much appreciate the clarifications, one of the many things I enjoy since finding this forum.
My last question, I hope, is what to do when my Priest advises us that this Saturday is a day of fast and complete abstinence, am I not obliged to follow that direction?

He has no authority over you and in any event, he is wrong.