[BUGFIX] Remove obsolete TYPO3.Utility from TypeScript definition

The "superglobal" `TYPO3.Utility` TypeScript module was removed in v10
with #87339. However, the related definition in our index.d.ts was
forgotten, which is now removed.

Resolves: #100095
Related: #87339
Releases: main, 11.5
Change-Id: Iece43a40b93f8ebfd1c312c09566600272bdfe10
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78035
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Nikita Hovratov <nikita.h@live.de>

Build/types/TYPO3/index.d.ts

@@ -21,7 +21,6 @@ declare namespace TYPO3 {
   export let ShortcutMenu: any;
   export let Storage: any;
   export let Tooltip: any;
-  export let Utility: any;
   export let WindowManager: any;
   export let Wizard: any;
   export let WorkspacesMenu: any;