Thread:SPDragon/@comment-27317828-20170317023048/@comment-26923519-20170317025624

Like what they said, they removed "unpopular" maps. Some maps are popular, but which are however removed. The removed maps are:
 * Spooky Theme Park
 * Blockmart
 * Pumpkin Island
 * Christmas Town
 * Night Christmas Town
 * Atlantis
 * Four Seasons
 * Inside The Code
 * Night Hunting
 * D-Day
 * Destroyed Megalopolis