Update aws from 1.16.252 to 1.16.268 (#3624)

Tested on ARM.

packages/aws.rb

@@ -3,27 +3,19 @@ require 'package'
 class Aws < Package
   description 'The AWS CLI is an open source tool built on top of the AWS SDK for Python (Boto) that provides commands for interacting with AWS services.'
   homepage 'https://aws.amazon.com/documentation/cli/'
-  version '1.16.252'
-  source_url 'https://github.com/aws/aws-cli/archive/1.16.252.tar.gz'
-  source_sha256 'dfe2021ac11641aa30bf0245f1be9ffcca54af5af6d66a1ed64a96b7bdf43690'
+  version '1.16.268'
+  source_url 'https://github.com/aws/aws-cli/archive/1.16.268.tar.gz'
+  source_sha256 'fde1ad4206fe92b27277ba6a21ff3879a0a390ee29679d2b4c9bfb47a7c7ce78'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/aws-1.16.252-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/aws-1.16.252-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/aws-1.16.252-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/aws-1.16.252-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: '9fcc0324a91701d843c57a0313c2f69a861db5e24edd1a47718c9d25bd36e63a',
-     armv7l: '9fcc0324a91701d843c57a0313c2f69a861db5e24edd1a47718c9d25bd36e63a',
-       i686: 'b2b31ba38141dac4baef15cb15fd54ac50ad1ccd261b961425b0d6630617c772',
-     x86_64: '6bb9bbf1fef058b191ade5a3feb4309afc61288ebbafea79231861f9418b0519',
   })
 
   depends_on 'six'
 
   def self.build
-    system "sed -i 's,-e git://github.com/boto/botocore.git@develop#egg=botocore,botocore==1.12.242,' requirements.txt"
+    system "sed -i 's,-e git://github.com/boto/botocore.git@develop#egg=botocore,botocore==1.13.4,' requirements.txt"
     system "sed -i 's,-e git://github.com/boto/s3transfer.git@develop#egg=s3transfer,s3transfer==0.2.0,' requirements.txt"
     system "sed -i 's,-e git://github.com/boto/jmespath.git@develop#egg=jmespath,jmespath==0.9.4,' requirements.txt"
   end