Tree cleanup (removal of test script debug_env)

Author: marcalff

mysql-test/collections/default.experimental

@@ -42,10 +42,6 @@ main.gis-rtree                           # svoj: due to BUG#38965
 main.type_float                          # svoj: due to BUG#38965
 main.type_newdecimal                     # svoj: due to BUG#38965
 
-# Not a test, utility to troubleshoot test failures
-# Flagged as experimental since output will vary
-perfschema.debug_env                         # Bug#59740 2011-02-26 Marc Alff, script needed to investigate the failure
-
 perfschema.ortho_iter                        # BUG#59740 2011-02-26 Marc Alff Test fails on FreeBSD
 perfschema.event_aggregate                   # BUG#59740 2011-02-26 Marc Alff Test fails on FreeBSD
 perfschema.table_aggregate_off               # BUG#59740 2011-02-26 Marc Alff Test fails on FreeBSD