Revert "remove debug file on start"

This reverts commit f7ce113557.

src/fenrir/core/debug.py

@@ -21,11 +21,6 @@ class debug():
         self._fileOpened = False
     def initialize(self, environment):
         self.env = environment    
-        if os.path.exists(self._fileName):
-	        try:
-		        os.remove(self._fileName)
-	        except OSError, e:
-		        print ("Error: %s - %s." % (e.filename,e.strerror))            
     def shutdown(self):
         self.closeDebugFile()
     def __del__(self):