Remove aligned '=>' and '='
minor #12362 [2.5] Remove aligned '=>' and '=' (disquedur)

This PR was merged into the 2.5 branch.

Discussion
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[2.5] Remove aligned '=>' and '='

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | [https://github.com/symfony/symfony/issues/12284]
| License       | MIT

PR for 2.3 branch : https://github.com/symfony/symfony/pull/12293

Commits
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e638ccb Remove aligned '=>' and '='