analytics: don't initialize handlers if they are not properly configured

react/features/analytics/handlers/AmplitudeHandler.js

 import AbstractHandler from './AbstractHandler';
 import { amplitude } from './amplitude';
 
-const logger = require('jitsi-meet-logger').getLogger(__filename);
-
 /**
  * Analytics handler for Amplitude.
  */
         const { amplitudeAPPKey, host } = options;
 
         if (!amplitudeAPPKey) {
-            logger.warn(
-                'Failed to initialize Amplitude handler, no APP key');
-
-            return;
+            throw new Error('Failed to initialize Amplitude handler, no APP key');
         }
 
         this._enabled = true;

react/features/analytics/handlers/GoogleAnalyticsHandler.js

 
 import AbstractHandler from './AbstractHandler';
 
-const logger = require('jitsi-meet-logger').getLogger(__filename);
-
 /**
  * Analytics handler for Google Analytics.
  */
         this._userProperties = {};
 
         if (!options.googleAnalyticsTrackingId) {
-            logger.warn(
-                'Failed to initialize Google Analytics handler, no tracking ID'
-            );
-
-            return;
+            throw new Error('Failed to initialize Google Analytics handler, no tracking ID');
         }
 
         this._enabled = true;