Don't install coreutils during deployment

Fedora seems to be renaming this package, so let's leave it alone.

Author: frozencemetery

Diff for: .travis/before-deploy.sh

@@ -11,7 +11,7 @@ source ./.travis/lib-deploy.sh
 
 setup::activate
 
-yum -y install tar coreutils git
+yum -y install tar git
 
 # build the docs
 deploy::build-docs