Rename providerset method to get primary providers

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

core/Controller/LoginController.php

@@ -334,7 +334,7 @@ class LoginController extends Controller {
 		if ($this->twoFactorManager->isTwoFactorAuthenticated($loginResult)) {
 			$this->twoFactorManager->prepareTwoFactorLogin($loginResult, $remember_login);
 
-			$providers = $this->twoFactorManager->getProviderSet($loginResult)->get3rdPartyProviders();
+			$providers = $this->twoFactorManager->getProviderSet($loginResult)->getPrimaryProviders();
 			if (count($providers) === 1) {
 				// Single provider, hence we can redirect to that provider's challenge page directly
 				/* @var $provider IProvider */

lib/private/Authentication/TwoFactorAuth/ProviderSet.php

@@ -70,7 +70,7 @@ class ProviderSet {
 	/**
 	 * @return IProvider[]
 	 */
-	public function get3rdPartyProviders(): array {
+	public function getPrimaryProviders(): array {
 		return array_filter($this->providers, function(IProvider $provider) {
 			return !($provider instanceof BackupCodesProvider);
 		});

tests/lib/Authentication/TwoFactorAuth/ProviderSetTest.php

@@ -64,7 +64,7 @@ class ProviderSetTest extends TestCase {
 
 		$set = new ProviderSet([$p2, $p1], false);
 
-		$this->assertEquals($expected, $set->get3rdPartyProviders());
+		$this->assertEquals($expected, $set->getPrimaryProviders());
 	}
 
 	public function testGetProvider() {