diff --git a/yapf.txt b/yapf.txt
deleted file mode 100644
index 9c5bd6c3ba..0000000000
--- a/yapf.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Ships:
-======
-Set the YAPF (Yet Another Path Finder) type in the "Configure Pathes/Vehicles/YAPF for ships":
- - 0 - No YAPF (NPF or old PF)
- - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)
- - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)
- - 3 - YAPF type 3 (Node = Tile/Trackdir, no 90 deg.)
- - 4 - YAPF type 4 (Node = Tile/ExitDir , no 90 deg.)
-
-
-Set the "npf_max_search_nodes" value in your openttd.cfg to tune the pathfinder behavior.
-This value tells, how many nodes (Tile/Trackdir or Tile/ExitDir) combinations the pathfinder
-should visit before it ends. The lower number would mean quicker, but less accurate results.
-The "npf_max_search_nodes" value is shared between NPF and YAPF and has the same meaning.
-
-The pathfinder without such limit would be unusable on large maps, where number of visited
-nodes can exceed 10 milions. NPF on my machine (dual code AMD 4400+) with 1 milion of nodes
-visited took 2 minutes to finish, but with this limit set to 10000 it takes 20 miliseconds.
-The new YAPF had similar results (18 seconds vs. 4 miliseconds).
-
-
-Road Vehicles:
-==============
-Set the YAPF (Yet Another Path Finder) type in the "Configure Pathes/Vehicles/YAPF for road vehs":
- - 0 - No YAPF (NPF or old PF)
- - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)
- - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)
-
-Trains:
-=======
-Same types as for ships:
- - 0 - No YAPF (NPF or old PF)
- - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)
- - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)
- - 3 - YAPF type 3 (Node = Tile/Trackdir, no 90 deg.)
- - 4 - YAPF type 4 (Node = Tile/ExitDir , no 90 deg.)