remove some default dependencies

Assets/Resources.meta

@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: e7aa1ef0de3d0447a985016d4af45a84
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Resources/BillingMode.json

@@ -1 +0,0 @@
-{"androidStore":"GooglePlay"}

Assets/Resources/BillingMode.json.meta

@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: 64cb5b554b36b481aa7384aecdbd398a
-TextScriptImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Packages/manifest.json

@@ -2,14 +2,11 @@
   "dependencies": {
     "com.unity.2d.sprite": "1.0.0",
     "com.unity.2d.tilemap": "1.0.0",
-    "com.unity.ads": "3.7.5",
-    "com.unity.analytics": "3.6.12",
     "com.unity.collab-proxy": "1.14.18",
     "com.unity.ide.rider": "1.2.1",
     "com.unity.ide.visualstudio": "2.0.15",
     "com.unity.ide.vscode": "1.2.5",
     "com.unity.multiplayer-hlapi": "1.0.8",
-    "com.unity.purchasing": "4.1.5",
     "com.unity.test-framework": "1.1.31",
     "com.unity.textmeshpro": "2.1.4",
     "com.unity.timeline": "1.2.18",

Packages/packages-lock.json

@@ -12,24 +12,6 @@
       "source": "builtin",
       "dependencies": {}
     },
-    "com.unity.ads": {
-      "version": "3.7.5",
-      "depth": 0,
-      "source": "registry",
-      "dependencies": {
-        "com.unity.ugui": "1.0.0"
-      },
-      "url": "https://packages.unity.com"
-    },
-    "com.unity.analytics": {
-      "version": "3.6.12",
-      "depth": 0,
-      "source": "registry",
-      "dependencies": {
-        "com.unity.ugui": "1.0.0"
-      },
-      "url": "https://packages.unity.com"
-    },
     "com.unity.collab-proxy": {
       "version": "1.14.18",
       "depth": 0,
@@ -78,29 +60,6 @@
       },
       "url": "https://packages.unity.com"
     },
-    "com.unity.purchasing": {
-      "version": "4.1.5",
-      "depth": 0,
-      "source": "registry",
-      "dependencies": {
-        "com.unity.ugui": "1.0.0",
-        "com.unity.modules.unityanalytics": "1.0.0",
-        "com.unity.modules.unitywebrequest": "1.0.0",
-        "com.unity.modules.jsonserialize": "1.0.0",
-        "com.unity.modules.androidjni": "1.0.0",
-        "com.unity.services.core": "1.0.1"
-      },
-      "url": "https://packages.unity.com"
-    },
-    "com.unity.services.core": {
-      "version": "1.0.1",
-      "depth": 1,
-      "source": "registry",
-      "dependencies": {
-        "com.unity.modules.unitywebrequest": "1.0.0"
-      },
-      "url": "https://packages.unity.com"
-    },
     "com.unity.test-framework": {
       "version": "1.1.31",
       "depth": 0,