Linux: do not remove class attributes, useless action

Author: BoboTiG

CHANGELOG

@@ -3,7 +3,7 @@ History:
 <see Git checking messages for history>
 
 3.3.1   2018/xx/xx
-      - Linux: fix a memory leak introduced with 7e8ae5703f0669f40532c2be917df4328bc3985e
+      - Linux: fix a memory leak introduced with 7e8ae5703f0669f40532c2be917df4328bc3985e (fixes #72)
 
 3.3.0   2018/09/04
       - Linux: add an error handler for the XServer to prevent interpreter crash (fix #61)

mss/linux.py

@@ -148,16 +148,14 @@ class MSS(MSSBase):
 
     def __del__(self):
         # type: () -> None
-        """ Disconnect from X server and clean-up locals. """
+        """ Clean-up. """
 
+        # Disconnect from the X server
         try:
             self.xlib.XCloseDisplay(self.display)
         except AttributeError:
             pass
 
-        for attr in list(vars(self)):
-            delattr(self, attr)
-
     def __init__(self, display=None):
         # type: (bytes) -> None
         """ GNU/Linux initialisations. """