Remove redundant code

src/content.ts

@@ -10,7 +10,6 @@ class Background {
 
 		const preferences: Preferences = await PreferencesRepository.get();
 		const hider = new TwitterHider(preferences);
-
 		hider.init();
 	}
 

src/popup.ts

@@ -1,5 +1,6 @@
 import { PreferencesRepository } from './preferences-repository';
 import { Preferences } from './interfaces/preferences';
+import { TwitterHider } from './hider';
 
 class Popup {
 	private static hideLikesCheckbox: HTMLInputElement;