Removes shared code in PushAdapter, replaces AdapterLoader.load by loadAdapter

src/Adapters/Push/PushAdapter.js

@@ -16,39 +16,7 @@ export class PushAdapter {
    * Get an array of valid push types.
    * @returns {Array} An array of valid push types
    */
-  getValidPushTypes() {
-    return this.validPushTypes;
-  }
-  
-  /**g
-   * Classify the device token of installations based on its device type.
-   * @param {Object} installations An array of installations
-   * @param {Array} validPushTypes An array of valid push types(string)
-   * @returns {Object} A map whose key is device type and value is an array of device
-   */
-  static classifyInstallation(installations, validPushTypes) {
-    // Init deviceTokenMap, create a empty array for each valid pushType
-    let deviceMap = {};
-    for (let validPushType of validPushTypes) {
-      deviceMap[validPushType] = [];
-    }
-    for (let installation of installations) {
-      // No deviceToken, ignore
-      if (!installation.deviceToken) {
-        continue;
-      }
-      let pushType = installation.deviceType;
-      if (deviceMap[pushType]) {
-        deviceMap[pushType].push({
-          deviceToken: installation.deviceToken,
-          appIdentifier: installation.appIdentifier
-        });
-      } else {
-        console.log('Unknown push type from installation %j', installation);
-      }
-    }
-    return deviceMap;
-  }
+  getValidPushTypes() {}
 }
 
 export default PushAdapter;