[!!!][TASK] Remove unneeded configurations in PageLayoutView

The following tsconfig configurations have been removed in favor of
strong defaults and less configuration options:

- `mod.web_layout.disableIconToolbar`
- `mod.web_layout.disableSearchBox`

Resolves: #93077
Releases: master
Change-Id: I01da28e2b3fbc12693c00cb012c3749b4fa4b0c7
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67117


Tested-by: Markus Klein <markus.klein@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>