parameters not nullable anylonger

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

src/main/java/com/nextcloud/client/etm/pages/EtmPreferencesFragment.kt

@@ -49,13 +49,13 @@ class EtmPreferencesFragment : EtmBaseFragment() {
         etm_preferences_text.text = builder
     }
 
-    override fun onCreateOptionsMenu(menu: Menu?, inflater: MenuInflater?) {
+    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         super.onCreateOptionsMenu(menu, inflater)
-        inflater?.inflate(R.menu.etm_preferences, menu)
+        inflater.inflate(R.menu.etm_preferences, menu)
     }
 
-    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
-        return when (item?.itemId) {
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        return when (item.itemId) {
             R.id.etm_preferences_share -> {
                 onClickedShare(); true
             }