DMX just caught a $630,000 break — TMZ has learned, a booking agency has dismissed its enormous lawsuit against the rapper over a botched 2011 comeback tour. TMZ broke the story … an agency called Heavy Rotation sued DMX in March claiming it struck an exclusive year-long deal with DMX in 2011 to book a string of comeback concerts — but the rapper was a pain in the ass to deal with … and torpedoed the entire tour. HR said it lost nearly $750,000 on the deal gone bad.