Even though the casino shut its doors in early April, the Tropicana gaming license is still valid. And in a move that may not seem to make sense on its surface, the owners of the property have asked for that license to be extended, even without a casino. Now, Clark County Commissioners have unanimously agreed to that extension, giving the license several additional years. Bally Corporation now owns the land where the soon to be imploded remains of the Tropicana Las Vegas sit. And according to Nevada Gaming Attorney Dennis Gutwald, the extension allows Bally’s to defer the expiration of…