[2.6] CS Fixes And Removed An Unused Import
minor #12872 [2.6] CS Fixes And Removed An Unused Import (GrahamCampbell)

This PR was squashed before being merged into the 2.6 branch (closes #12872).

Discussion
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[2.6] CS Fixes And Removed An Unused Import

| 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

##### This pull request fixes some cs issues in symfony 2.6.

This is the sequel to #12856.

Commits
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2f10a0a [2.6] CS Fixes And Removed An Unused Import