Remove empty Flotr2 directory

Having this empty directory exist causes `git submodule` commands to
fail with "No submodule mapping found in .gitmodules for path
'dashboard/app/bower_components/Flotr2'".

Signed-off-by: Tim Serong <tserong@suse.com>
Don't run state.highstate by default in provisioning

Makes it easier to see build logs if you invoke
vagrant ssh sudo salt-call state.highstate from the build

Signed-off-by: Dan Mick <dan.mick@inktank.com>
Remove dependency on lsb_release/redhat-lsb-core

Signed-off-by: Dan Mick <dan.mick@inktank.com>