Removed Process.kill spec checking EPERM.
Removed Process.kill spec checking EPERM.

There is no reliable way to guarantee that a specific PID is not killable
by the user running the specs, even when not superuser. On the other hand,
there is no way to make a process that is not killable because to do so would
require escalating privileges.

iliabylich/rubyspec,sgarciac/spec,nobu/rubyspec,askl56/rubyspec,eregon/rubyspec,nobu/rubyspec,BanzaiMan/rubyspec,ruby/rubyspec,kidaa/rubyspec,ruby/spec,wied03/rubyspec,kachick/rubyspec,lucaspinto/rubyspec,ruby/spec,benlovell/rubyspec,sgarciac/spec,iliabylich/rubyspec,jannishuebl/rubyspec,wied03/rubyspec,bl4ckdu5t/rubyspec,askl56/rubyspec,ruby/rubyspec,jannishuebl/rubyspec,bl4ckdu5t/rubyspec,yous/rubyspec,ruby/spec,wied03/rubyspec,yous/rubyspec,eregon/rubyspec,nobu/rubyspec,sgarciac/spec,kidaa/rubyspec,BanzaiMan/rubyspec,kachick/rubyspec,lucaspinto/rubyspec,kachick/rubyspec,benlovell/rubyspec,eregon/rubyspec