Merge branch 'feature/issue186_delete_migrate' into 'master'

Deleted Migrate section

See merge request !31

migrate/README.md

-# How To Migrate
-
-Migration from legacy platforms `CESNET-MetaCloud` (OpenNebula) and
-`OStack ICS MUNI` will be handled internally on a case-by-case basis.
-
-Users who do not require assistance should terminate their virtual machines
-in legacy platforms and start new virtual machines in MetaCentrum Cloud
-at their own convenience.
-
-Remaining users and larger communities will be contacted in the near
-future for assisted migration.
-
-Migration will follow these general rules
-* running virtual machines cannot be transferred,
-* public IP addresses cannot be transferred,
-* images with operating systems cannot be transferred.
-
-If you have any questions, please contact user support.