Delete various master branches after automated build/testing scripts are updated

main branches added to the following for 12.0a1

• Tor Browser Build
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• RBM
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• Torbutton
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• Tor Launcher
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• Tor Android Service
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• Tor Browser Bundle Testsuite
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab
• Tor Browser Spec
  • delete master on gitlolite
  • delete master on gitlab
  • block master on gitlab

In theory we should be done with torbutton and tor-launcher after 12.0 stable is released but we'll see.