Removed versionadded/changed annotations for 1.8.

docs/ref/contrib/gis/gdal.txt

@@ -1090,8 +1090,6 @@ the same coordinate transformation repeatedly on different geometries::
 Raster Data Objects
 ===================
 
-.. versionadded:: 1.8
-
 ``GDALRaster``
 ----------------
 

docs/ref/contrib/gis/install/postgis.txt

@@ -64,7 +64,8 @@ spatial functionality::
     > CREATE EXTENSION postgis;
 
 The database user must be a superuser in order to run
-``CREATE EXTENSION postgis;``.
+``CREATE EXTENSION postgis;``. The command is run during the :djadmin:`migrate`
+process.
 
 GeoDjango does not currently leverage any `PostGIS topology functionality`__.
 If you plan to use those features at some point, you can also install the
@@ -73,12 +74,6 @@ postgis_topology;``.
 
 __ http://postgis.net/docs/Topology.html
 
-.. versionchanged:: 1.8
-
-    The ``CREATE EXTENSION postgis`` command is now automatically run during
-    the :djadmin:`migrate` process. You can still create it manually if you
-    wish.
-
 Managing the database
 ---------------------
 

docs/ref/contrib/gis/install/spatialite.txt

@@ -160,8 +160,3 @@ Creating a spatial database for SpatiaLite
 When running ``manage.py migrate`` with a SQLite or SpatiaLite database, the
 database file will be automatically created if it doesn't exist. Django will
 also ensure that the spatial metadata are initialized in the database.
-
-.. versionchanged:: 1.8
-
-    Prior to Django 1.8, you had to initialize spatial metadata tables yourself
-    by manually running the "SELECT InitSpatialMetaData();" query.

docs/ref/contrib/gis/serializers.txt

@@ -2,8 +2,6 @@
 GeoJSON Serializer
 ==================
 
-.. versionadded:: 1.8
-
 .. module:: django.contrib.gis.serializers.geojson
    :synopsis: Serialization of GeoDjango models in the GeoJSON format.