去掉物理碰撞组件，英雄的移动改由系统逻辑统一处理

assets/resources/game/skills/fireto.prefab

@@ -38,16 +38,10 @@
       },
       {
         "__id__": 16
-      },
-      {
-        "__id__": 18
-      },
-      {
-        "__id__": 20
       }
     ],
     "_prefab": {
-      "__id__": 22
+      "__id__": 18
     },
     "_lpos": {
       "__type__": "cc.Vec3",
@@ -278,74 +272,6 @@
     "__type__": "cc.CompPrefabInfo",
     "fileId": "5cF3YtaNJO6arYWX/tn4cL"
   },
-  {
-    "__type__": "cc.RigidBody2D",
-    "_name": "",
-    "_objFlags": 0,
-    "__editorExtras__": {},
-    "node": {
-      "__id__": 1
-    },
-    "_enabled": true,
-    "__prefab": {
-      "__id__": 15
-    },
-    "enabledContactListener": true,
-    "bullet": true,
-    "awakeOnLoad": true,
-    "_group": 4,
-    "_type": 2,
-    "_allowSleep": false,
-    "_gravityScale": 0,
-    "_linearDamping": 0,
-    "_angularDamping": 0,
-    "_linearVelocity": {
-      "__type__": "cc.Vec2",
-      "x": 0,
-      "y": 0
-    },
-    "_angularVelocity": 0,
-    "_fixedRotation": false,
-    "_id": ""
-  },
-  {
-    "__type__": "cc.CompPrefabInfo",
-    "fileId": "4bdBL+TclP+79aZSabYtfK"
-  },
-  {
-    "__type__": "cc.BoxCollider2D",
-    "_name": "",
-    "_objFlags": 0,
-    "__editorExtras__": {},
-    "node": {
-      "__id__": 1
-    },
-    "_enabled": true,
-    "__prefab": {
-      "__id__": 17
-    },
-    "tag": 8,
-    "_group": 4,
-    "_density": 1,
-    "_sensor": true,
-    "_friction": 0.2,
-    "_restitution": 0,
-    "_offset": {
-      "__type__": "cc.Vec2",
-      "x": 0,
-      "y": 40
-    },
-    "_size": {
-      "__type__": "cc.Size",
-      "width": 150,
-      "height": 200
-    },
-    "_id": ""
-  },
-  {
-    "__type__": "cc.CompPrefabInfo",
-    "fileId": "f70rkggRZACZKqkR8MhiBL"
-  },
   {
     "__type__": "6a7fejJxHlM5r/TS8IFF1Kq",
     "_name": "",
@@ -356,7 +282,7 @@
     },
     "_enabled": true,
     "__prefab": {
-      "__id__": 19
+      "__id__": 15
     },
     "_id": ""
   },
@@ -374,7 +300,7 @@
     },
     "_enabled": true,
     "__prefab": {
-      "__id__": 21
+      "__id__": 17
     },
     "_id": ""
   },