[HttpFoundation] removed wrong HTTP header
minor #13115 [HttpFoundation] removed wrong HTTP header (fabpot)

This PR was merged into the 2.3 branch.

Discussion
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[HttpFoundation] removed wrong HTTP header

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12194
| License       | MIT
| Doc PR        | n/a

Commits
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73dddac [HttpFoundation] removed wrong HTTP header