[fix] Remove Ionic v1 config file

ionic.config.json

 {
   "name": "Cesium",
+  "type": "ionic1",
+  "integrations": {
+    "cordova": {}
+  },
   "watchPatterns": [
     "www/dist/**/*",
     "www/css/*.css"
-  ],
-  "defaultBrowser": "chrome",
-  "browsers": [
-    {
-      "platform": "android",
-      "browser": "crosswalk",
-      "version": "12.41.296.5"
-    }
-  ],
-  "integrations": {
-    "cordova": {}
-  }
+  ]
 }

ionic.project

-{
-  "name": "Cesium",
-  "app_id": "",
-  "watchPatterns": [
-    "www/dist/**/*",
-    "www/css/*.css"
-  ],
-  "gulpStartupTasks": [
-    "serve:before",
-    "watch"
-  ],
-  "defaultBrowser": "chrome",
-  "browsers": [
-    {
-      "platform": "android",
-      "browser": "crosswalk",
-      "version": "12.41.296.5"
-    }
-  ]
-}
\ No newline at end of file