diff --git a/tests/gis_tests/geoapp/tests.py b/tests/gis_tests/geoapp/tests.py
index fb1df6a79f..98523c2add 100644
--- a/tests/gis_tests/geoapp/tests.py
+++ b/tests/gis_tests/geoapp/tests.py
@@ -14,8 +14,7 @@ from django.db.models import F, OuterRef, Subquery
 from django.test import TestCase, skipUnlessDBFeature
 
 from ..utils import (
-    mariadb, mysql, no_oracle, oracle, postgis, skipUnlessGISLookup,
-    spatialite,
+    mariadb, mysql, oracle, postgis, skipUnlessGISLookup, spatialite,
 )
 from .models import (
     City, Country, Feature, MinusOneSRID, MultiFields, NonConcreteModel,
@@ -157,9 +156,6 @@ class GeoModelTest(TestCase):
         self.assertIsInstance(f_4.geom, GeometryCollection)
         self.assertEqual(f_3.geom, f_4.geom[2])
 
-    # TODO: fix on Oracle: ORA-22901: cannot compare nested table or VARRAY or
-    # LOB attributes of an object type.
-    @no_oracle
     @skipUnlessDBFeature("supports_transform")
     def test_inherited_geofields(self):
         "Database functions on inherited Geometry fields."
diff --git a/tests/gis_tests/relatedapp/tests.py b/tests/gis_tests/relatedapp/tests.py
index 2b4a0b0ed0..b834e13d48 100644
--- a/tests/gis_tests/relatedapp/tests.py
+++ b/tests/gis_tests/relatedapp/tests.py
@@ -5,7 +5,6 @@ from django.test import TestCase, skipUnlessDBFeature
 from django.test.utils import override_settings
 from django.utils import timezone
 
-from ..utils import no_oracle
 from .models import (
     Article, Author, Book, City, DirectoryEntry, Event, Location, Parcel,
 )
@@ -208,8 +207,6 @@ class RelatedGeoModelTest(TestCase):
             self.assertEqual(val_dict['id'], c_id)
             self.assertEqual(val_dict['location__id'], l_id)
 
-    # TODO: fix on Oracle -- qs2 returns an empty result for an unknown reason
-    @no_oracle
     def test10_combine(self):
         "Testing the combination of two QuerySets (#10807)."
         buf1 = City.objects.get(name='Aurora').location.point.buffer(0.1)
@@ -252,8 +249,6 @@ class RelatedGeoModelTest(TestCase):
         self.assertEqual(2, qs[0]['num_cities'])
         self.assertIsInstance(qs[0]['point'], GEOSGeometry)
 
-    # TODO: The phantom model does appear on Oracle.
-    @no_oracle
     def test13_select_related_null_fk(self):
         "Testing `select_related` on a nullable ForeignKey."
         Book.objects.create(title='Without Author')
diff --git a/tests/gis_tests/utils.py b/tests/gis_tests/utils.py
index 7eb61701f8..d2089e87a3 100644
--- a/tests/gis_tests/utils.py
+++ b/tests/gis_tests/utils.py
@@ -24,23 +24,6 @@ def skipUnlessGISLookup(*gis_lookups):
     return decorator
 
 
-def no_backend(test_func, backend):
-    "Use this decorator to disable test on specified backend."
-    if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'].rsplit('.')[-1] == backend:
-        @unittest.skip("This test is skipped on '%s' backend" % backend)
-        def inner():
-            pass
-        return inner
-    else:
-        return test_func
-
-
-# Decorators to disable entire test functions for specific
-# spatial backends.
-def no_oracle(func):
-    return no_backend(func, 'oracle')
-
-
 # Shortcut booleans to omit only portions of tests.
 _default_db = settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'].rsplit('.')[-1]
 oracle = _default_db == 'oracle'