--- a/tests/test-check-flake8.t	Fri Oct 20 18:41:05 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,18 +0,0 @@
-#require test-repo
-
-  $ checkflake8() {
-  >   if ! (which flake8 > /dev/null); then
-  >     echo skipped: missing tool: flake8;
-  >     exit 80;
-  >   fi;
-  > };
-  $ checkflake8
-
-Copied from Mercurial core (60ee2593a270)
-
-  $ cd "`dirname "$TESTDIR"`"
-
-run flake8 if it exists; if it doesn't, then just skip
-
-  $ hg files -0 'set:(**.py or grep("^#!.*python")) - removed()' 2>/dev/null \
-  > | xargs -0 flake8