msc3818: remove template text from beginning

Author: Mikaela

proposals/3818-copy-room-type-on-upgrade.md

@@ -1,9 +1,5 @@
 # MSC3818: Copy room type on upgrade
 
-There can never be enough templates in the world, and MSCs shouldn't be any different. The level
-of detail expected of proposals can be unclear - this is what this example proposal (which doubles
-as a template itself) aims to resolve.
-
 Unless the room upgrade API specifies that room type must be copied over, clients cannot rely on
 rooms staying the same type leading to trouble.