remove documentation for features introduced in 4.3

Author: xabbuh

reference/constraints/CardScheme.rst

@@ -136,13 +136,8 @@ Valid values are:
 * ``LASER``
 * ``MAESTRO``
 * ``MASTERCARD``
-* ``UATP``
 * ``VISA``
 
-.. versionadded:: 4.3
-
-    The ``UATP`` number scheme was introduced in Symfony 4.3.
-
 For more information about the used schemes, see
 `Wikipedia: Issuer identification number (IIN)`_.
 

reference/constraints/Choice.rst

@@ -319,16 +319,11 @@ too many options per the `max`_ option.
 
 You can use the following parameters in this message:
 
-=================  ============================================================
-Parameter          Description
-=================  ============================================================
-``{{ choices }}``  A comma-separated list of available choices
-``{{ value }}``    The current (invalid) value
-=================  ============================================================
-
-.. versionadded:: 4.3
-
-    The ``{{ choices }}`` parameter was introduced in Symfony 4.3.
+===============  ============================================================
+Parameter        Description
+===============  ============================================================
+``{{ value }}``  The current (invalid) value
+===============  ============================================================
 
 message
 ~~~~~~~
@@ -367,16 +362,11 @@ too few choices per the `min`_ option.
 
 You can use the following parameters in this message:
 
-=================  ============================================================
-Parameter          Description
-=================  ============================================================
-``{{ choices }}``  A comma-separated list of available choices
-``{{ value }}``    The current (invalid) value
-=================  ============================================================
-
-.. versionadded:: 4.3
-
-    The ``{{ choices }}`` parameter was introduced in Symfony 4.3.
+===============  ============================================================
+Parameter        Description
+===============  ============================================================
+``{{ value }}``  The current (invalid) value
+===============  ============================================================
 
 multiple
 ~~~~~~~~

reference/forms/types/form.rst

@@ -157,8 +157,6 @@ of the form type tree (i.e. it cannot be used as a form type on its own).
 
 .. include:: /reference/forms/types/options/block_name.rst.inc
 
-.. include:: /reference/forms/types/options/block_prefix.rst.inc
-
 .. include:: /reference/forms/types/options/disabled.rst.inc
 
 .. include:: /reference/forms/types/options/label.rst.inc