Revert "Fix Bug 2234 Upgrading Python libjuju to 2.9.42.1"

This reverts commit 3f1dfe6c3459ff3eaf6f87ac6ded1a8bcdd93a69.

Change-Id: Ife5237b2be30e1ddc4d91fb1c68c8a92e284be73
Signed-off-by: Guillermo Calvino <guillermo.calvino@canonical.com>
diff --git a/tox.ini b/tox.ini
index 4b0144f..74e2aeb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,9 +65,9 @@
 deps =  {[testenv]deps}
         -r{toxinidir}/requirements-dev.txt
         -r{toxinidir}/requirements-test.txt
-        pylint
+        pylint==2.10.2
 commands =
-    pylint -E n2vc --disable=E1101
+    pylint -E n2vc
 
 
 #######################################################################################
@@ -121,7 +121,7 @@
         E125,
         E203,
         E226,
-        E241,
+        E241
 exclude =
         .git,
         __pycache__,