Remove qt4 workspacewidget test

qt/python/CMakeLists.txt

@@ -97,6 +97,9 @@ endif ()
   # Leave it out as it's a very basic test and the Qt5
   # tests should catch any problems anyway
   list ( REMOVE_ITEM PYTHON_TEST_FILES mantidqt/widgets/test/test_jupyterconsole.py )
+  # The workspacewidget test randomly sefaults on exit with Qt4. It will not be used
+  # in a Qt 4 context so remove the test
+  list ( REMOVE_ITEM PYTHON_TEST_FILES mantidqt/widgets/workspacewidget/test/test_workspacetreewidget.py )
   set ( PYUNITTEST_QT_API pyqt )
   pyunittest_add_test ( ${CMAKE_CURRENT_SOURCE_DIR}
     mantidqt_qt4 ${PYTHON_TEST_FILES}