diff --git a/addon/serializers/rest.js b/addon/serializers/rest.js
index f10533fd614..3291dcbb7ff 100644
--- a/addon/serializers/rest.js
+++ b/addon/serializers/rest.js
@@ -160,16 +160,6 @@ const RESTSerializer = JSONSerializer.extend({
     @param {String} prop
     @return {Object}
   */
-  normalize(modelClass, resourceHash, prop) {
-    if (this.normalizeHash && this.normalizeHash[prop]) {
-      deprecate('`RESTSerializer.normalizeHash` has been deprecated. Please use `serializer.normalize` to modify the payload of single resources.', false, {
-        id: 'ds.serializer.normalize-hash-deprecated',
-        until: '3.0.0'
-      });
-      this.normalizeHash[prop](resourceHash);
-    }
-    return this._super(modelClass, resourceHash);
-  },
 
   /**
     Normalizes an array of resource payloads and returns a JSON-API Document
diff --git a/tests/integration/serializers/rest-serializer-test.js b/tests/integration/serializers/rest-serializer-test.js
index f2aca2c68ae..584d2b6661c 100644
--- a/tests/integration/serializers/rest-serializer-test.js
+++ b/tests/integration/serializers/rest-serializer-test.js
@@ -374,116 +374,6 @@ test("normalizeResponse loads secondary records with correct serializer", functi
   assert.equal(superVillainNormalizeCount, 1, "superVillain is normalized once");
 });
 
-testInDebug('normalizeHash normalizes specific parts of the payload (DEPRECATED)', function(assert) {
-  env.registry.register('serializer:application', DS.RESTSerializer.extend({
-    normalizeHash: {
-      homePlanets(hash) {
-        hash.id = hash._id;
-        delete hash._id;
-        return hash;
-      }
-    }
-  }));
-
-  var jsonHash = {
-    homePlanets: [{ _id: "1", name: "Umber", superVillains: [1] }]
-  };
-  var array;
-
-  run(function() {
-    assert.expectDeprecation(function() {
-      array = env.restSerializer.normalizeResponse(env.store, HomePlanet, jsonHash, null, 'findAll');
-    }, /`RESTSerializer.normalizeHash` has been deprecated/);
-  });
-
-  assert.deepEqual(array, {
-    "data": [{
-      "id": "1",
-      "type": "home-planet",
-      "attributes": {
-        "name": "Umber"
-      },
-      "relationships": {
-        "superVillains": {
-          "data": [
-            { "id": "1", "type": "super-villain" }
-          ]
-        }
-      }
-    }],
-    "included": []
-  });
-
-});
-
-testInDebug('normalizeHash has been deprecated', function(assert) {
-  env.registry.register('serializer:application', DS.RESTSerializer.extend({
-
-    normalizeHash: {
-      homePlanets(hash) {
-        hash.id = hash._id;
-        delete hash._id;
-        return hash;
-      }
-    }
-  }));
-
-  var jsonHash = {
-    homePlanets: [{ _id: "1", name: "Umber", superVillains: [1] }]
-  };
-
-  run(function() {
-    assert.expectDeprecation(function() {
-      env.restSerializer.normalizeResponse(env.store, HomePlanet, jsonHash, null, 'findAll');
-    }, /`RESTSerializer.normalizeHash` has been deprecated/);
-  });
-});
-
-
-testInDebug('normalizeHash works with transforms (DEPRECATED)', function(assert) {
-  env.registry.register('serializer:application', DS.RESTSerializer.extend({
-    normalizeHash: {
-      evilMinions(hash) {
-        hash.condition = hash._condition;
-        delete hash._condition;
-        return hash;
-      }
-    }
-  }));
-
-  env.registry.register('transform:condition', DS.Transform.extend({
-    deserialize(serialized) {
-      if (serialized === 1) {
-        return "healing";
-      } else {
-        return "unknown";
-      }
-    },
-    serialize(deserialized) {
-      if (deserialized === "healing") {
-        return 1;
-      } else {
-        return 2;
-      }
-    }
-  }));
-
-  EvilMinion.reopen({ condition: DS.attr('condition') });
-
-  var jsonHash = {
-    evilMinions: [{ id: "1", name: "Tom Dale", superVillain: 1, _condition: 1 }]
-  };
-  var array;
-
-  run(function() {
-    assert.expectDeprecation(function() {
-      array = env.restSerializer.normalizeResponse(env.store, EvilMinion, jsonHash, null, 'findAll');
-    }, /`RESTSerializer.normalizeHash` has been deprecated/);
-  });
-
-  assert.equal(array.data[0].attributes.condition, "healing");
-});
-
 test('normalize should allow for different levels of normalization', function(assert) {
   env.registry.register('serializer:application', DS.RESTSerializer.extend({
     attrs: {