Remove superfluous "tarvelocity" assignments

advtrains/trainlogic.lua

@@ -1002,7 +1002,6 @@ function advtrains.do_connect_trains(first_id, second_id)
 	advtrains.remove_train(second_id)
 	
 	first.velocity=0
-	first.tarvelocity=0
 	
 	advtrains.update_trainpart_properties(first_id)
 	advtrains.couple_invalidate(first)

advtrains/wagons.lua

@@ -438,11 +438,9 @@ function wagon:on_step(dtime)
 					--enable collision mercy to get trains stuck in walls out of walls
 					--actually do nothing except limiting the velocity to 1
 					train.velocity=math.min(train.velocity, 1)
-					train.tarvelocity=math.min(train.tarvelocity, 1)
 				else
 					train.recently_collided_with_env=true
 					train.velocity=0
-					train.tarvelocity=0
 					self.collision_count=(self.collision_count or 0)+1
 				end
 			else

advtrains_train_subway/init.lua

@@ -114,7 +114,6 @@ advtrains.register_wagon("subway_wagon", {
 		 	})
 			self.line_cache=line
 		elseif self.line_cache~=nil and line==nil then
-			atdebug("clear line")
 			self.object:set_properties({
 				textures=self.textures,
 		 	})