fix(NODE-3777): remove dead code

Author: durran

src/cmap/auth/gssapi.ts

@@ -13,8 +13,6 @@ import { Callback, ns } from '../../utils';
 import { AuthContext, AuthProvider } from './auth_provider';
 
 type MechanismProperties = {
-  // TODO: Remove in 5.0
-  gssapiCanonicalizeHostName?: boolean;
   CANONICALIZE_HOST_NAME?: boolean;
   SERVICE_NAME?: string;
   SERVICE_REALM?: string;
@@ -176,10 +174,7 @@ function performGssapiCanonicalizeHostName(
   mechanismProperties: MechanismProperties,
   callback: Callback<string>
 ): void {
-  if (
-    !mechanismProperties.gssapiCanonicalizeHostName &&
-    !mechanismProperties.CANONICALIZE_HOST_NAME
-  ) return callback(undefined, host);
+  if (!mechanismProperties.CANONICALIZE_HOST_NAME) return callback(undefined, host);
 
   // Attempt to resolve the host name
   dns.resolveCname(host, (err, r) => {

test/manual/kerberos.test.js

@@ -51,7 +51,17 @@ describe('Kerberos', function () {
     });
   });
 
-  it('validate that SERVICE_REALM and CANONICALIZE_HOST_NAME can be passed in', function (done) {
+  it('validate that CANONICALIZE_HOST_NAME can be passed in', function (done) {
+    const client = new MongoClient(
+      `${krb5Uri}&authMechanismProperties=SERVICE_NAME:mongodb,CANONICALIZE_HOST_NAME:true&maxPoolSize=1`
+    );
+    client.connect(function (err, client) {
+      expect(err).to.not.exist;
+      verifyKerberosAuthentication(client, done);
+    });
+  });
+
+  it.skip('validate that SERVICE_REALM and CANONICALIZE_HOST_NAME can be passed in', function (done) {
     const client = new MongoClient(
       `${krb5Uri}&authMechanismProperties=SERVICE_NAME:mongodb,CANONICALIZE_HOST_NAME:false,SERVICE_REALM:windows&maxPoolSize=1`
     );