delete sso user when deleting org user (#901)

src/Sql/dbo/Stored Procedures/OrganizationUser_DeleteById.sql

@@ -5,6 +5,22 @@ BEGIN
     SET NOCOUNT ON
     
     EXEC [dbo].[User_BumpAccountRevisionDateByOrganizationUserId] @Id
+    
+    DECLARE @OrganizationId UNIQUEIDENTIFIER
+    DECLARE @UserId UNIQUEIDENTIFIER
+
+    SELECT
+        @OrganizationId = [OrganizationId],
+        @UserId = [UserId]
+    FROM
+        [dbo].[OrganizationUser]
+    WHERE
+        [Id] = @Id
+
+    IF @OrganizationId IS NOT NULL AND @UserId IS NOT NULL
+    BEGIN
+        EXEC [dbo].[SsoUser_Delete] @UserId, @OrganizationId
+    END
 
     DELETE
     FROM