Remove old versionadded annotations from the docs

docs/advanced_topics/api/v2/configuration.rst

@@ -144,8 +144,6 @@ fields, you must select the ``blog.BlogPage`` type using the ``?type``
 Custom serialisers
 ------------------
 
-.. versionadded: 1.10
-
 Serialisers_ are used to convert the database representation of a model into
 JSON format. You can override the serialiser for any field using the
 ``serializer`` keyword argument:
@@ -197,8 +195,6 @@ This adds two fields to the API (other fields omitted for brevity):
 Images in the API
 -----------------
 
-.. versionadded: 1.10
-
 The :class:`~wagtail.wagtailimages.api.fields.ImageRenditionField` serialiser
 allows you to add renditions of images into your API. It requires an image
 filter string specifying the resize operations to perform on the image. It can

docs/advanced_topics/i18n/index.rst

@@ -19,8 +19,6 @@ If your language isn't listed on that page, you can easily contribute new langua
 
 Change Wagtail admin language on a per user basis
 =================================================
-.. versionadded:: 1.10
-
 
 Logged-in users can set their preferred language from ``/admin/account/``.
 By default, Wagtail provides a list of languages that have a >= 90% translation coverage.

docs/advanced_topics/settings.rst

@@ -218,8 +218,6 @@ setting. This is fully documented in :ref:`configuring_embed_finders`.
 Dashboard
 ---------
 
-.. versionadded:: 1.10
-
 .. code-block:: python
 
     WAGTAILADMIN_RECENT_EDITS_LIMIT = 5
@@ -321,8 +319,6 @@ This is the path to the Django template which will be used to display the "passw
 
   DOCUMENT_PASSWORD_REQUIRED_TEMPLATE = 'myapp/document_password_required.html'
 
-.. versionadded:: 1.11
-
 As above, but for password restrictions on documents. For more details, see the :ref:`private_pages` documentation.
 
 Case-Insensitive Tags
@@ -337,8 +333,6 @@ Tags are case-sensitive by default ('music' and 'Music' are treated as distinct
 Multi-word tags
 ---------------
 
-.. versionadded:: 1.10
-
 .. code-block:: python
 
   TAG_SPACES_ALLOWED = False
@@ -359,8 +353,6 @@ By default, page slugs can contain any alphanumeric characters, including non-La
 Auto update preview
 -------------------
 
-.. versionadded:: 1.10
-
 .. code-block:: python
 
   WAGTAIL_AUTO_UPDATE_PREVIEW = False
@@ -425,8 +417,6 @@ Specifies the date and datetime format to be used in input fields in the Wagtail
 Admin languages
 ---------------
 
-.. versionadded:: 1.10
-
 Users can choose between several languages for the admin interface
 in the account settings. The list of languages is by default all the available
 languages in Wagtail. To change it, set ``WAGTAILADMIN_PERMITTED_LANGUAGES``:

docs/reference/contrib/postgres_search.rst

@@ -4,8 +4,6 @@
 PostgreSQL search engine
 ========================
 
-.. versionadded:: 1.10
-
 This contrib module provides a search engine backend for Wagtail using
 `PostgreSQL full-text search capabilities <https://www.postgresql.org/docs/current/static/textsearch.html>`_.