Remove unnecessary init() call Closes #994

Author: ddraganov

pyVmomi/SoapAdapter.py

@@ -987,7 +987,6 @@ def EndElementHandler(self, tag):
 # -- InvokeMethod(ManagedObject mo, Object methodInfo, Object[] args)
 class StubAdapterBase(StubAdapterAccessorMixin):
     def __init__(self, version):
-        StubAdapterAccessorMixin.__init__(self)
         self.ComputeVersionInfo(version)
 
     # Compute the version information for the specified namespace