Canelo Alvarez Gunning for 1st Round Knockout Against GGG

[[tmz:video id="0_1lseq5lv"]] Canelo Alvarez says he doesn't want his rematch with Gennady Golovkin to go to the judges -- he wants to take matters into his own hands and knock the dude out in the 1ST ROUND. TMZ Sports spoke with Canelo (via…