Removed an unneeded note in the Lock docs

javiereguiluz · javiereguiluz · commit a26c8bfdbdb9 · 2017-12-23T11:56:26.000+01:00
diff --git a/components/lock.rst b/components/lock.rst
@@ -8,9 +8,6 @@ The Lock Component
     The Lock Component creates and manages `locks`_, a mechanism to provide
     exclusive access to a shared resource.
 
-.. versionadded:: 3.4
-    The Lock component was introduced in Symfony 3.4.
-
 Installation
 ------------
 
