Removed validation for the ClosingStructures whether the failuremechanism contains any sections to enable or disable the Validate(All) and Calculate(All) buttons in the context menu: - Adjusted affected tests: assessment section mocks --> stubs, because property getter of AssessmentSection.HydraulicBoundaryDatabase is called - Removed obsolete tests that assert the behavior when a section is set or not - Cleaned up tests: -- Removed geometry definitions for the failure mechanism sections -- Renamed parameters such that suffices -Stub and -Mock are dropped Related to Issue [WTI-1064]