combine if conditions

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/owncloud/android/operations/RefreshFolderOperation.java

@@ -236,11 +236,7 @@ public class RefreshFolderOperation extends RemoteOperation {
         mConflictsFound = 0;
         mForgottenLocalFiles.clear();
 
-        if (mLocalFolder == null) {
-            return new RemoteOperationResult<>(ResultCode.LOCAL_FILE_NOT_FOUND);
-        }
-
-        if (mLocalFolder.getRemotePath() == null) {
+        if (mLocalFolder == null || mLocalFolder.getRemotePath() == null) {
             return new RemoteOperationResult<>(ResultCode.LOCAL_FILE_NOT_FOUND);
         }