Update docs

docs/source/command_line.rst

@@ -1008,7 +1008,7 @@ format into the specified directory.
 Enabling incomplete/experimental features
 *****************************************
 
-.. option:: --enable-incomplete-feature {PreciseTupleTypes, NewGenericSyntax, InlineTypedDict}
+.. option:: --enable-incomplete-feature {PreciseTupleTypes, InlineTypedDict}
 
     Some features may require several mypy releases to implement, for example
     due to their complexity, potential for backwards incompatibility, or
@@ -1055,19 +1055,6 @@ List of currently incomplete/experimental features:
          # Without PreciseTupleTypes: tuple[int, ...]
          # With PreciseTupleTypes: tuple[()] | tuple[int] | tuple[int, int]
 
-* ``NewGenericSyntax``: this feature enables support for syntax defined
-  by :pep:`695`. For example:
-
-  .. code-block:: python
-
-     class Container[T]:  # defines a generic class
-         content: T
-
-     def first[T](items: list[T]) -> T:  # defines a generic function
-         return items[0]
-
-     type Items[T] = list[tuple[T, T]]  # defines a generic type alias
-
 * ``InlineTypedDict``: this feature enables non-standard syntax for inline
   :ref:`TypedDicts <typeddict>`, for example: