Merge pull request #2424 from Owain94/rxjava3

plugins: Remove plugin from the plugin list if it failed to start

runelite-client/src/main/java/net/runelite/client/plugins/PluginManager.java

@@ -453,10 +453,12 @@ public class PluginManager
 		}
 		catch (ThreadDeath e)
 		{
+			activePlugins.remove(plugin);
 			throw e;
 		}
 		catch (Throwable ex)
 		{
+			activePlugins.remove(plugin);
 			throw new PluginInstantiationException(ex);
 		}