[VirtualBox/f24] (4 commits) ...Remove patch already in upstream and cleanup spec

[Sérgio M. Basto]

Summary of changes:

  90d0c2e... Fix for kernel 4.8.0-rc5 (*)
  15574b4... Fix for kernel 4.8.0-rc5 (*)
  65a166d... Update VBox to 5.1.6 (*)
  31551d3... Remove patch already in upstream and cleanup spec (*)

(*) This commit already existed in another branch; no separate mail sent