Don't separately require astroid and cause version mismatches

drewbo · drewbo · commit a936c9ee099c · 2018-12-07T10:04:57.000-05:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,6 +1,5 @@
-astroid>=1.6.0
 isort>=4.2.15
-pylint==1.8.1
+pylint==1.9.1
 Sphinx==1.8.0
 sphinx-autobuild==0.7.1
 sphinxcontrib-fulltoc==1.2.0
