Deprecations that trigger an error in early bootstrap
lead to the situation that code that is using this
(mostly declared) internal API will likely fail due
to these errors, as they are not caught by the
regular error handling, which is initialized later on.

Userland code using this API will notice the depreaction
even without those errors triggered.

Therefore remove those deprecations errors in most
places again so that tools like TYPO3 Console will be able
to stay compatible with older TYPO3 versions as well.

Also protect some methods straight away and add a deprecation
layer for them.

Resolves: #85944
Releases: master
Change-Id: I97485dfd947028cf02ff62b17b453d2f174a531a
Reviewed-on: https://review.typo3.org/58003


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>