minor #4318 [Cookbook][Bundles] Correct a typo: remove unnecessary "the" word (fabschurt)

This PR was merged into the 2.3 branch.

Discussion
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[Cookbook][Bundles] Correct a typo: remove unnecessary "the" word

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | n/a

Commits
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0d8e3c2 Correct a typo: remove unnecessary "the" word.

Author: wouterj

cookbook/bundles/extension.rst

@@ -84,7 +84,7 @@ container, to ensure all services and parameters are also added to the actual
 container.
 
 In the ``load()`` method, you can use PHP code to register service definitions,
-but it is more common if you put the these definitions in a configuration file
+but it is more common if you put these definitions in a configuration file
 (using the Yaml, XML or PHP format). Luckily, you can use the file loaders in
 the extension!