Merged PR 730675: Remove outdated comment

Remove outdated comment

Related work items: #2045956

Author: Oleksii Kononenko

Public/Src/Utilities/Configuration/Mutable/UnsafeSandboxConfiguration.cs

@@ -19,7 +19,6 @@ public UnsafeSandboxConfiguration()
             IgnorePreloadedDlls = false;
             SandboxKind = SandboxKind.Default;
 
-            // TODO: this is a temporarily flag. Take it out in few weeks.
             ExistingDirectoryProbesAsEnumerations = false;
             IgnoreZwRenameFileInformation = false;
             IgnoreZwOtherFileInformation = false;