diff --git a/django/contrib/gis/db/backends/oracle/models.py b/django/contrib/gis/db/backends/oracle/models.py
index 5d7a6323a9..02dcf212ea 100644
--- a/django/contrib/gis/db/backends/oracle/models.py
+++ b/django/contrib/gis/db/backends/oracle/models.py
@@ -65,7 +65,3 @@ class OracleSpatialRefSys(models.Model, SpatialRefSysMixin):
     @property
     def wkt(self):
         return self.wktext
-
-    @classmethod
-    def wkt_col(cls):
-        return 'wktext'
diff --git a/django/contrib/gis/db/backends/postgis/models.py b/django/contrib/gis/db/backends/postgis/models.py
index 68d4c188d6..84ead6807c 100644
--- a/django/contrib/gis/db/backends/postgis/models.py
+++ b/django/contrib/gis/db/backends/postgis/models.py
@@ -67,7 +67,3 @@ class PostGISSpatialRefSys(models.Model, SpatialRefSysMixin):
     @property
     def wkt(self):
         return self.srtext
-
-    @classmethod
-    def wkt_col(cls):
-        return 'srtext'