Do not readd nodes to the context
Do not readd nodes to the context

...as the context exists only in this job anyway. Note that the configuration
modification is done by a separate explicit call to the configuration.

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

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