minor #3676 remove unnecessary code block directive (xabbuh)

This PR was merged into the master branch.

Discussion
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remove unnecessary code block directive

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.5+
| Fixed tickets |

Commits
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37278d8 remove unnecessary code block directive

Author: weaverryan

components/console/helpers/table.rst

@@ -103,8 +103,6 @@ which outputs:
 
 If the built-in styles do not fit your need, define your own::
 
-.. code-block:: php
-
     use Symfony\Component\Helper\TableStyle;
 
     // by default, this is based on the default style