Fix spectating being quit on world change / respawn

src/main/java/eu/crushedpixel/replaymod/replay/ReplayHandler.java

@@ -135,18 +135,11 @@ public class ReplayHandler {
     }
 
     public static void spectateEntity(Entity e) {
-        if(e == null) {
-            spectateCamera();
-        }
-        else {
-            if (mc.getRenderViewEntity() != e) {
-                mc.setRenderViewEntity(e);
-            }
-        }
+        getCameraEntity().spectate(e);
     }
 
     public static void spectateCamera() {
-        mc.setRenderViewEntity(getCameraEntity());
+        spectateEntity(null);
     }
 
     public static boolean isCamera() {

src/main/java/eu/crushedpixel/replaymod/replay/ReplaySender.java

@@ -386,8 +386,6 @@ public class ReplaySender extends ChannelInboundHandlerAdapter {
 
                     CameraEntity cent = ReplayHandler.getCameraEntity();
                     cent.moveAbsolute(ppl.func_148932_c(), ppl.func_148928_d(), ppl.func_148933_e());
-                    
-                    ReplayHandler.spectateCamera();
                     return null;
                 }
             }.call();