removed as many usage of the request service as possible without breaking BC
feature #10354 removed as many usage of the request service as possible without breaking BC (fabpot)

This PR was merged into the 2.5-dev branch.

Discussion
----------

removed as many usage of the request service as possible without breaking BC

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Commits
-------

d638369 removed as many usage of the request service as possible without breaking BC