quick test to see if the binary is the problem

there's a problem with the newest chromeos. We're going to get rid of the binary and have the system build it from source (sucks but let's see if that fixes the current issue)

packages/zlibpkg.rb

@@ -7,19 +7,6 @@ class Zlibpkg < Package
   source_url 'http://www.zlib.net/zlib-1.2.11.tar.gz'
   source_sha256 'c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1'
 
-  binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/zlibpkg-1.2.11-2-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/zlibpkg-1.2.11-2-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/zlibpkg-1.2.11-2-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/zlibpkg-1.2.11-2-chromeos-x86_64.tar.xz',
-  })
-  binary_sha256 ({
-    aarch64: '05c91e73a746eb34abebaf8ca8d22732d67465299aa5c3127fb74916e15d6323',
-     armv7l: '05c91e73a746eb34abebaf8ca8d22732d67465299aa5c3127fb74916e15d6323',
-       i686: '0302d82be0083ab3034909c0111ccddf8d94e83bf0a6218523d49d502876796b',
-     x86_64: '79e08846bb5d73f07cfe0a515cf46a060c2f96ad95651e7d2e5bced93f52ade4',
-  })
-
   def self.build
     system './configure',
            "--prefix=#{CREW_PREFIX}",