删除部分场景遗留的鼠标右键返回

parts/scenes/app_cannon.lua

@@ -37,8 +37,6 @@ end
 function scene.mouseDown(k)
 	if k==1 then
 		scene.keyDown("space")
-	elseif k==2 then
-		SCN.back()
 	end
 end
 function scene.touchDown()

parts/scenes/app_polyforge.lua

@@ -79,8 +79,6 @@ end
 function scene.mouseDown(_,_,k)
 	if k==1 then
 		scene.keyDown("space")
-	elseif k==2 then
-		scene.keyDown("escape")
 	end
 end
 function scene.touchDown()

parts/scenes/setting_touch.lua

@@ -34,8 +34,7 @@ local function onVK_org(x,y)
 	return nearest
 end
 function scene.mouseDown(x,y,k)
-	if k==2 then SCN.back()end
-	scene.touchDown(x,y)
+	if k==1 then scene.touchDown(x,y)end
 end
 function scene.mouseUp()
 	scene.touchUp()