Remove double entry for localhost on machines status page

Dependencies

• [2] 36ZTCZ4F Add basic Persona support
• [*] J5UVLXOK * Start of a basic Catalyst web interface.
• [*] RFGPN7U7 Machine status: Don't show removed machines anymore

Change contents

• edit in src/lib/Hydra/Controller/Root.pm at line 113
  [5.61]

  [2.0]
  + delete ${$machines}{'localhost'};