Fix: removed dublicate call of init_directory_structure

Change-Id: Iccf7fc7ee0fa6c74b3beb38f78c64243f0f002c2
diff --git a/trsync/objects/rsync_mirror.py b/trsync/objects/rsync_mirror.py
index 2647d0f..8a93b04 100644
--- a/trsync/objects/rsync_mirror.py
+++ b/trsync/objects/rsync_mirror.py
@@ -53,7 +53,6 @@
         self._log.info('Using timestamp {}'.format(self.timestamp))
 
         if init_directory_structure is True:
-            super(TRsync, self)._init_directory_structure()
             self._init_snapshots_dir()
 
     def _init_snapshots_dir(self):