diff --git a/demo/mushroom/maptree.py b/demo/mushroom/maptree.py
deleted file mode 100755
index b5c046cbb..000000000
--- a/demo/mushroom/maptree.py
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/usr/bin/python
-import sys
-
-def loadnmap( fname ):
-    nmap = {}
-    for l in open(fname):
-        arr = l.split()
-        nmap[int(arr[0])] = arr[1].strip()
-    return nmap
-
-fo = sys.stdout
-nmap = loadnmap( 'featname.txt' )
-for l in open( 'dump.txt'):
-    idx = l.find('[f')
-    if idx == -1:
-        fo.write(l)
-    else:
-        fid = int( l[idx+2:len(l)].split('<')[0])
-        rl = l[0:idx]+'['+nmap[fid]+']' + l.split()[1].strip()+'\n'
-        fo.write(rl)
-