Deprecate last couple of legacy format related tests

tests/ServerTest.php

@@ -609,6 +609,9 @@ public function testValidateLoginThrowsIfRequestIsSignedWithWrongKey(): void
 
  // -( Alternate formats (see #14) )----------------------------------------
 
+ /**
+ * @deprecated
+ */
  public function testRegistrationWithoutCidPubkeyBug14Case1(): void
  {
  $registerRequest = new RegisterRequest();
@@ -636,6 +639,9 @@ public function testRegistrationWithoutCidPubkeyBug14Case1(): void
  $this->assertInstanceOf(Registration::class, $registration);
  }
 
+ /**
+ * @deprecated
+ */
  public function testRegistrationWithoutCidPubkeyBug14Case2(): void
  {
  $registerRequest = new RegisterRequest();