Remove no longer needed tests due to last change

Spigot-API-Patches/Remove-deadlock-risk-in-firing-async-events.patch

@@ -78,4 +78,43 @@ index cb2b0b9cb..a7dd902fb 100644
          HandlerList handlers = event.getHandlers();
          RegisteredListener[] listeners = handlers.getRegisteredListeners();
  
+diff --git a/src/test/java/org/bukkit/plugin/PluginManagerTest.java b/src/test/java/org/bukkit/plugin/PluginManagerTest.java
+index 6b86128e1..56308c0c6 100644
+--- a/src/test/java/org/bukkit/plugin/PluginManagerTest.java
++++ b/src/test/java/org/bukkit/plugin/PluginManagerTest.java
+@@ -0,0 +0,0 @@ public class PluginManagerTest {
+     private static final PluginManager pm = TestServer.getInstance().getPluginManager();
+ 
+     private final MutableObject store = new MutableObject();
+-
++/* // Paper start - remove unneeded test
+     @Test
+     public void testAsyncSameThread() {
+         final Event event = new TestEvent(true);
+@@ -0,0 +0,0 @@ public class PluginManagerTest {
+             return;
+         }
+         throw new IllegalStateException("No exception thrown");
+-    }
++    }*/ // Paper end
+ 
+     @Test
+     public void testSyncSameThread() {
+         final Event event = new TestEvent(false);
+         pm.callEvent(event);
+     }
+-
++/* // Paper start - remove unneeded test
+     @Test
+     public void testAsyncLocked() throws InterruptedException {
+         final Event event = new TestEvent(true);
+@@ -0,0 +0,0 @@ public class PluginManagerTest {
+         secondThread.join();
+         assertThat(store.value, is(instanceOf(IllegalStateException.class)));
+         assertThat(event.getEventName() + " cannot be triggered asynchronously from inside synchronized code.", is(((Throwable) store.value).getMessage()));
+-    }
++    }*/ // Paper end
+ 
+     @Test
+     public void testAsyncUnlocked() throws InterruptedException {
 --