absorb updater.js into the Platforms, gets rid of pointless setInterval in Electron

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

(cherry picked from commit 24e8a30)
Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/vector/platform/VectorBasePlatform.js

@@ -74,6 +74,12 @@ export default class VectorBasePlatform extends BasePlatform {
         this._updateFavicon();
     }
 
+    /**
+     * Begin update polling, if applicable
+     */
+    startUpdater() {
+    }
+
     /**
      * Check for the availability of an update to the version of the
      * app that's currently running.