Remove UmbracoApplicationMainDomAcquiredNotification.cs

src/Umbraco.Core/Notifications/UmbracoApplicationMainDomAcquiredNotification.cs

@@ -1,26 +0,0 @@
-// Copyright (c) Umbraco.
-// See LICENSE for more details.
-
-using System;
-
-namespace Umbraco.Cms.Core.Notifications
-{
-    // TODO (V10): Remove this class.
-
-    /// <summary>
-    /// Notification that occurs during Umbraco boot after the MainDom has been acquired.
-    /// </summary>
-    [Obsolete("This notification was added to the core runtime start-up as a hook for Umbraco Cloud local connection string and database setup. " +
-        "Following re-work they are no longer used (from Deploy 9.2.0)." +
-        "Given they are non-documented and no other use is expected, they can be removed in the next major release")]
-    public class UmbracoApplicationMainDomAcquiredNotification : INotification
-    {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="UmbracoApplicationMainDomAcquiredNotification"/> class.
-        /// </summary>
-        /// <param name="runtimeLevel">The runtime level</param>
-        public UmbracoApplicationMainDomAcquiredNotification()
-        {
-        }
-    }
-}