End Gateway FPS drop

The end_gateway beam is still rendered by the client after the beam has reached it's timelimit (10sec i think?)

you can easilly see this by standing in the end_gateway block: https://gyazo.com/b73a04a5a892cf288b015a5f57309cff https://gyazo.com/d940ab50230899aab8e1ae81b24b8ba8

while this may not seem like a big issue. if custom map creators want to build with this block (as it makes an awesome void/space texture) having alot of these blocks causes severe lag to the client.

i believe something needs to be done that will remove the beam entirely from the block after the 10 sec. (much like the beacon block, no supporting blocks, no beam)