[BUGFIX] Remove wrong-spelled/not existing class from Services.yaml

As the class TYPO3\CMS\Dashboard\DasboardRegistry is wrong-spelled and
does not exist, it is removed.

Resolves: #91287
Releases: master
Change-Id: I016aeb4839ed62ae7d23f011c9a87c104bb2b138
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64398
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>

typo3/sysext/dashboard/Configuration/Services.yaml

@@ -16,6 +16,3 @@ services:
 
   TYPO3\CMS\Dashboard\Controller\WidgetAjaxController:
     public: true
-
-  TYPO3\CMS\Dashboard\DasboardRegistry:
-    public: true