Remove beta hint from grid view

app/src/main/res/values/strings.xml

@@ -146,7 +146,6 @@
     <string name="add_category">Add %1$s</string>
     <string name="simple_checkbox">Checkbox</string>
     <string name="unlock_notes">Unlock notes</string>
-    <string name="simple_beta">Beta</string>
     <string name="error_dialog_title">Oh no - What now? 🙁</string>
     <string name="error_dialog_tip_token_mismatch_retry">Please try to force close the app and restart it again. There might have been an incorrect connection to the Nextcloud app.</string>
     <string name="error_dialog_tip_token_mismatch_clear_storage">If the issue persists, try to clear the storage of both apps: Nextcloud and Nextcloud Notes to solve this issue.</string>

app/src/main/res/xml/preferences.xml

@@ -49,7 +49,6 @@
             android:icon="@drawable/ic_baseline_dashboard_24"
             android:key="@string/pref_key_gridview"
             android:layout="@layout/item_pref"
-            android:summary="@string/simple_beta"
             android:title="@string/settings_gridview" />
 
     </it.niedermann.owncloud.notes.branding.BrandedPreferenceCategory>