Update brotli from 1.0.7 to 1.0.8 (#4349)

Tested on x86_64. All tests pass.

packages/brotli.rb

@@ -3,22 +3,14 @@ require 'package'
 class Brotli < Package
   description 'Brotli compression format'
   homepage 'https://github.com/google/brotli'
-  version '1.0.7'
+  version '1.0.8'
   compatibility 'all'
-  source_url 'https://github.com/google/brotli/archive/v1.0.7.tar.gz'
-  source_sha256 '4c61bfb0faca87219ea587326c467b95acb25555b53d1a421ffa3c8a9296ee2c'
+  source_url 'https://github.com/google/brotli/archive/v1.0.8.tar.gz'
+  source_sha256 'a0bfaf49d8d35262ef1d1e617486b061f47c634721c345051bf8d9fb806f3bb9'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/brotli-1.0.7-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/brotli-1.0.7-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/brotli-1.0.7-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/brotli-1.0.7-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: '43431c301ab6830cf2a79c6d4fb6e7ea931259bab62166f61b1fb9ba7ad00502',
-     armv7l: '43431c301ab6830cf2a79c6d4fb6e7ea931259bab62166f61b1fb9ba7ad00502',
-       i686: '6f1447ea8c2583762e63fda4a410b0c27a53706ab7cd0c5d7bec8613bb0437ec',
-     x86_64: 'e4e0eea55f7d0adf9fb619e9b14b91ed5d906cd3d8b7f441d33357c662b4f6f7',
   })
 
   def self.build