Remove deprecated --experimental option of autopep8
This option was deprecated in v2.2.0[1].
[1] https://github.com/hhatto/autopep8/issues/422
Change-Id: I8be7fe4082f2f2630b492e469fa380bae04d2d03
diff --git a/tools/format.sh b/tools/format.sh
index ef5cc92..9685cdf 100755
--- a/tools/format.sh
+++ b/tools/format.sh
@@ -15,7 +15,7 @@
# isort is not compatible with the default flake8 (H306), maybe flake8-isort
# isort -rc -sl -fss ../tempest ../setup.py
-$AUTOPEP8 --exit-code --max-line-length=79 --experimental --in-place \
+$AUTOPEP8 --exit-code --max-line-length=79 --in-place \
-r ../tempest ../setup.py
ERROR=$?