Remove unused masterd classes
Remove unused masterd classes

With masterd no longer in use, quite a few of its classes
are not needed any more.

Signed-off-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>
Reviewed-by: Petr Pudlak <9d19625f8ee825a2c398462ed335cbcf98f79c32@google.com>

leshchevds/ganeti,grnet/snf-ganeti,onponomarev/ganeti,yiannist/ganeti,mbakke/ganeti,mbakke/ganeti,leshchevds/ganeti,grnet/snf-ganeti,bitemyapp/ganeti,ganeti/ganeti,bitemyapp/ganeti,onponomarev/ganeti,andir/ganeti,yiannist/ganeti,andir/ganeti,ganeti/ganeti,andir/ganeti,leshchevds/ganeti,mbakke/ganeti,yiannist/ganeti,ganeti/ganeti