[2.7][FrameworkBundle] Removed the use of TableHelper

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | ~
| License       | MIT
| Doc PR        | ~

The PR https://github.com/symfony/symfony/pull/13121 on 3.0 removed the TableHelper class. Now the tests don't pass because of the use of the deprecated TableHelper. With this one, everything goes back to normal.