Remove the node name from map field

[aleksbykov]

PR pre-checks (self review)

• I followed KISS principle
• I gave variables/functions meaningful self-explanatory names
• I didn't leave commented-out/debugging code
• I didn't copy-paste code
• I added the relevant backport labels
• [] New configuration option are added and documented (in sdcm/sct_config.py)
• [] I have added tests to cover my changes (Infrastructure only - under unit-test/ folder)
• [] All new and existing unit tests passed (hydra unit-tests)
• [] I have updated the Readme/doc folder accordingly (if needed)

[aleksbykov]

Also, maybe write a script which will go through all results and change this fields to new one?

[roydahan]

Yes, we will need a script to go over the results and change them.
Do you have a sample JSON with the new result?

[aleksbykov]

@roy,
Sorry forgot to add to commit desc
Now it will look like this:
"setup_details": {
"cloud_credentials_path": "~/.ssh/support",
"db_type": "scylla",
"run_fullscan": "random, 1",
"cluster_backend": "aws",
"user_prefix": "abykov-test-abykov",
"db_cluster_node_details": {
"sys_info": "Linux ip-172-30-0-148.ec2.internal 5.1.8-1.el7.elrepo.x86_64 #1 SMP Sun Jun 9 08:49:11 EDT 2019 x86_64 x86_64 x86_64 GNU/Linux",
"cpu_model": "Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz"
},
"nemesis_filter_seeds": true,

[bentsi]

I am merging this and will create a new task in Trello for change old results to the new format