remove empty continuation lines

Author: matthewhanson

Dockerfile.base

@@ -5,11 +5,9 @@ FROM lambdalinux/baseimage-amzn:2017.03-004
 
 RUN \
 	yum -y update; \
-    # python 3.6
     yum install -y python36-devel python36-pip; \
     pip-3.6 install boto3 pytest; \
     pip-3.6 install --upgrade pip; \
-	# python 2.7
 	yum install -y python27-devel python27-pip; \
 	pip-2.7 install boto3 pytest; \
     pip-2.7 install --upgrade pip; \