Update setup.py

Author: robertnishihara

python/setup.py

@@ -25,7 +25,7 @@
 # before these files have been created, so we have to move the files
 # manually.
 
-SUPPORTED_PYTHONS = [(3, 5), (3, 6), (3, 7), (3, 8)]
+SUPPORTED_PYTHONS = [(3, 6), (3, 7), (3, 8)]
 SUPPORTED_BAZEL = (3, 2, 0)
 
 ROOT_DIR = os.path.dirname(__file__)