Remove outdated nbsetup reference

lukelbd · lukelbd · commit 6862db6ee4c1 · 2020-01-08T01:14:33.000-07:00
diff --git a/proplot/rctools.py b/proplot/rctools.py
@@ -60,7 +60,6 @@ def get_ipython():
     'lut': 256,
     'margin': 0.0,
     'matplotlib': 'auto',
-    'nbsetup': True,
     'ocean': False,
     'reso': 'lo',
     'rgbcycle': False,
