SPRINGFIELD — The day after Democratic gubernatorial candidate J.B. Pritzker defended a tax break he received from removing toilets from his Chicago home, he vowed to refund the $330,000 owed.In 2007, Pritzker and his wife bought a second mansion next to their home in Chicago’s Gold Coast. The mansion remained vacant and fell into disrepair.In the fall of 2015, the Pritzkers removed five toilets from the home. They then filed affidavits stating the home was rendered uninhabitable and therefore subject to a …