remove override DefaultContext

Author: VeryEarly

src/Accounts/Accounts/Default/ClearAzureRmDefault.cs

@@ -46,7 +46,7 @@ public override void ExecuteCmdlet()
                 throw new Exception("Default Resource Group cannot be set on CloudShell");
             }
 
-            IAzureContext context = AzureRmProfileProvider.Instance.Profile.DefaultContext;
+            IAzureContext context = DefaultContext;
             // If no parameters are specified, clear all defaults
             if (!ResourceGroup)
             {

src/Accounts/Accounts/Default/GetAzureRmDefault.cs

@@ -35,18 +35,6 @@ public class GetAzureRMDefaultCommand : AzureRMCmdlet
         [Parameter(ParameterSetName = ResourceGroupParameterSet, Mandatory = false, HelpMessage = "Display Default Resource Group", ValueFromPipelineByPropertyName = true)]
         public SwitchParameter ResourceGroup { get; set; }
 
-        protected override IAzureContext DefaultContext
-        {
-            get
-            {
-                if (AzureRmProfileProvider.Instance.Profile == null || AzureRmProfileProvider.Instance.Profile.DefaultContext == null || AzureRmProfileProvider.Instance.Profile.DefaultContext.Account == null)
-                {
-                    throw new PSInvalidOperationException(ResourceManager.Common.Properties.Resources.RunConnectAccount);
-                }
-                return AzureRmProfileProvider.Instance.Profile.DefaultContext;
-            }
-        }
-
         public override void ExecuteCmdlet()
         {
             IAzureContext context = DefaultContext;

src/Accounts/Accounts/Default/SetAzureRMDefault.cs

@@ -43,18 +43,6 @@ public class SetAzureRMDefaultCommand : AzureContextModificationCmdlet
         [Parameter(Mandatory = false, HelpMessage = "Create a new resource group if specified default does not exist")]
         public SwitchParameter Force { get; set; }
 
-        protected override IAzureContext DefaultContext
-        {
-            get
-            {
-                if (AzureRmProfileProvider.Instance.Profile == null || AzureRmProfileProvider.Instance.Profile.DefaultContext == null || AzureRmProfileProvider.Instance.Profile.DefaultContext.Account == null)
-                {
-                    throw new PSInvalidOperationException(ResourceManager.Common.Properties.Resources.RunConnectAccount);
-                }
-                return AzureRmProfileProvider.Instance.Profile.DefaultContext;
-            }
-        }
-
         public override void ExecuteCmdlet()
         {
             if (Environment.GetEnvironmentVariable("ACC_CLOUD") != null)