Yes it is gone now. It was actually unified with the ROH world title in a match between then ROH champion Bryan Danielson vs. then Pure champion Nigel Mcguiness (the match was incredible by the way). Also, Pure title matches had a certain stipulation of rules, such as each man only had three rope breaks, and I believe other rules were used.
I don't really know why they scrapped it. I thought it was a very good title, and there were some classic title defenses when it was active.