Removed updateRelativeTimeViews when the activity is paused

We don't need to call ``updateRelativeTimeViews`` when the activity is paused, because the user likely won't  notice it.
Despite that onResume already calls ``updateRelativeTimeViews`` so there is no need to do that twice.

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.kt

@@ -167,14 +167,6 @@ class FeedFragment : BaseStateFragment<FeedState>() {
         }
     }
 
-    override fun setUserVisibleHint(isVisibleToUser: Boolean) {
-        super.setUserVisibleHint(isVisibleToUser)
-
-        if (!isVisibleToUser && view != null) {
-            updateRelativeTimeViews()
-        }
-    }
-
     override fun initListeners() {
         super.initListeners()
         feedBinding.refreshRootView.setOnClickListener { reloadContent() }