minor #8948 Clean up (carusogabriel)

This PR was squashed before being merged into the 3.4 branch (closes #8948).

Discussion
----------

Clean up

Following #8947, suggested by @xabbuh

Commits
-------

509e05f Clean up

Author: xabbuh

components/lock.rst

@@ -146,7 +146,6 @@ Locks are created and managed in ``Stores``, which are classes that implement
 :class:`Symfony\\Component\\Lock\\StoreInterface`. The component includes the
 following built-in store types:
 
-
 ============================================  ======  ========  ========
 Store                                         Scope   Blocking  Expiring
 ============================================  ======  ========  ========

components/phpunit_bridge.rst

@@ -497,7 +497,6 @@ Consider the following example::
         }
     }
 
-
 The ``FooTest::test`` method executes every single line of code of both ``Foo``
 and ``Bar`` classes, but ``Bar`` is not truly tested. The ``CoverageListener``
 aims to fix this behavior by adding the appropriate `@covers`_ annotation on

configuration/micro_kernel_trait.rst

@@ -200,7 +200,6 @@ hold the kernel. Now it looks like this::
         }
     }
 
-
 .. versionadded:: 3.4
     Support for annotation routing without an external bundle was added in
     Symfony 3.4. Prior to version 3.4, you needed to install the

console.rst

@@ -184,7 +184,7 @@ as a service, you can use normal dependency injection. Imagine you have a
         public function __construct(UserManager $userManager)
         {
             $this->userManager = $userManager;
-            
+
             parent::__construct();
         }
 

debug/debugging.rst

@@ -83,7 +83,7 @@ that can help you visualize and find the information.
 
 ``debug:config``
     Shows all configured bundles, their class and their alias.
-    
+
 ``debug:form``
     Displays information about form types and their options.