remove unnecessary dependencies from backports-ssl_match_hostname

Author: minrk

pkgs/backports-ssl_match_hostname.yaml

@@ -1,9 +1,5 @@
 extends: [setuptools_package]
 
-dependencies:
-  build: []
-  run: []
-
 sources:
 - key: tar.gz:a5aq475qtkvxxwxv4ymn4zwd3lee4lr5
   url: https://pypi.python.org/packages/source/b/backports.ssl_match_hostname/backports.ssl_match_hostname-3.4.0.2.tar.gz