Index: Riskeer/GrassCoverErosionOutwards/src/Riskeer.GrassCoverErosionOutwards.Service/GrassCoverErosionOutwardsDataSynchronizationService.cs
===================================================================
diff -u -rea8c156b28c2d2a1173f678aae5f0fb2804f0d81 -r6c09e77448f2f24cd29006e37d76d252feece845
--- Riskeer/GrassCoverErosionOutwards/src/Riskeer.GrassCoverErosionOutwards.Service/GrassCoverErosionOutwardsDataSynchronizationService.cs	(.../GrassCoverErosionOutwardsDataSynchronizationService.cs)	(revision ea8c156b28c2d2a1173f678aae5f0fb2804f0d81)
+++ Riskeer/GrassCoverErosionOutwards/src/Riskeer.GrassCoverErosionOutwards.Service/GrassCoverErosionOutwardsDataSynchronizationService.cs	(.../GrassCoverErosionOutwardsDataSynchronizationService.cs)	(revision 6c09e77448f2f24cd29006e37d76d252feece845)
@@ -147,37 +147,6 @@
             return new ClearResults(changedObjects, removedObjects);
         }
 
-        /// <summary>
-        /// Clears the hydraulic boundary location calculation output that is contained within the grass cover erosion outwards failure mechanism.
-        /// </summary>
-        /// <param name="failureMechanism">The failure mechanism to clear the hydraulic boundary location calculation output for.</param>
-        /// <returns>All objects changed during the clear.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/> is <c>null</c>.</exception>
-        public static IEnumerable<IObservable> ClearHydraulicBoundaryLocationCalculationOutput(GrassCoverErosionOutwardsFailureMechanism failureMechanism)
-        {
-            if (failureMechanism == null)
-            {
-                throw new ArgumentNullException(nameof(failureMechanism));
-            }
-
-            var affectedObjects = new List<IObservable>();
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm));
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm));
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm));
-
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm));
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm));
-            affectedObjects.AddRange(RiskeerCommonDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(
-                                         failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm));
-
-            return affectedObjects;
-        }
-
         private static IEnumerable<IObservable> ClearHydraulicBoundaryLocation(WaveConditionsInput input)
         {
             if (input.HydraulicBoundaryLocation != null)
Index: Riskeer/GrassCoverErosionOutwards/test/Riskeer.GrassCoverErosionOutwards.Service.Test/GrassCoverErosionOutwardsDataSynchronizationServiceTest.cs
===================================================================
diff -u -rea8c156b28c2d2a1173f678aae5f0fb2804f0d81 -r6c09e77448f2f24cd29006e37d76d252feece845
--- Riskeer/GrassCoverErosionOutwards/test/Riskeer.GrassCoverErosionOutwards.Service.Test/GrassCoverErosionOutwardsDataSynchronizationServiceTest.cs	(.../GrassCoverErosionOutwardsDataSynchronizationServiceTest.cs)	(revision ea8c156b28c2d2a1173f678aae5f0fb2804f0d81)
+++ Riskeer/GrassCoverErosionOutwards/test/Riskeer.GrassCoverErosionOutwards.Service.Test/GrassCoverErosionOutwardsDataSynchronizationServiceTest.cs	(.../GrassCoverErosionOutwardsDataSynchronizationServiceTest.cs)	(revision 6c09e77448f2f24cd29006e37d76d252feece845)
@@ -26,7 +26,6 @@
 using NUnit.Framework;
 using Riskeer.Common.Data.Calculation;
 using Riskeer.Common.Data.Hydraulics;
-using Riskeer.Common.Data.TestUtil;
 using Riskeer.Common.Service;
 using Riskeer.GrassCoverErosionOutwards.Data;
 using Riskeer.GrassCoverErosionOutwards.Data.TestUtil;
@@ -203,48 +202,6 @@
             CollectionAssert.AreEquivalent(expectedRemovedObjects, results.RemovedObjects);
         }
 
-        [Test]
-        public void ClearHydraulicBoundaryLocationCalculationOutput_FailureMechanismNull_ThrowsArgumentNullException()
-        {
-            // Call
-            void Call() => GrassCoverErosionOutwardsDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(null);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("failureMechanism", exception.ParamName);
-        }
-
-        [Test]
-        public void ClearHydraulicBoundaryLocationCalculationOutput_FailureMechanismWithOutputs_OutputClearedAndAffectedItemsReturned()
-        {
-            // Setup
-            var hydraulicBoundaryLocations = new[]
-            {
-                new TestHydraulicBoundaryLocation(),
-                new TestHydraulicBoundaryLocation()
-            };
-
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-            failureMechanism.SetHydraulicBoundaryLocationCalculations(hydraulicBoundaryLocations);
-
-            failureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-            failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-            failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-            failureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-            failureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-            failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.First().Output = new TestHydraulicBoundaryLocationCalculationOutput();
-
-            IEnumerable<HydraulicBoundaryLocationCalculation> expectedAffectedItems =
-                GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.GetAllHydraulicBoundaryLocationCalculationsWithOutput(failureMechanism);
-
-            // Call
-            IEnumerable<IObservable> affectedItems = GrassCoverErosionOutwardsDataSynchronizationService.ClearHydraulicBoundaryLocationCalculationOutput(failureMechanism);
-
-            // Assert
-            CollectionAssert.AreEquivalent(expectedAffectedItems, affectedItems);
-            GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.AssertHydraulicBoundaryLocationCalculationsHaveNoOutputs(failureMechanism);
-        }
-
         private static GrassCoverErosionOutwardsFailureMechanism CreateFullyConfiguredFailureMechanism()
         {
             var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();