Spotbugs: remove needless boxing of boolean constant

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/src/main/java/com/nextcloud/talk/activities/CallActivity.java

@@ -592,7 +592,7 @@ public class CallActivity extends CallBaseActivity {
     private void handleFromNotification() {
         int apiVersion = ApiUtils.getConversationApiVersion(conversationUser, new int[]{ApiUtils.APIv4, 1});
 
-        ncApi.getRooms(credentials, ApiUtils.getUrlForRooms(apiVersion, baseUrl), false)
+        ncApi.getRooms(credentials, ApiUtils.getUrlForRooms(apiVersion, baseUrl), Boolean.FALSE)
             .retry(3)
             .subscribeOn(Schedulers.io())
             .observeOn(AndroidSchedulers.mainThread())

app/src/main/java/com/nextcloud/talk/activities/CallBaseActivity.java

@@ -21,7 +21,7 @@ public abstract class CallBaseActivity extends BaseActivity {
     public static final String TAG = "CallBaseActivity";
 
     public PictureInPictureParams.Builder mPictureInPictureParamsBuilder;
-    public Boolean isInPipMode = false;
+    public Boolean isInPipMode = Boolean.FALSE;
     long onCreateTime;
 
     @SuppressLint("ClickableViewAccessibility")