CHIA-843 Simplify add_to_pool around DB operations

[AmineKhaldi]

No description provided.

[coveralls-official]

Pull Request Test Coverage Report for Build 9703183842

Details

• 23 of 23 (100.0%) changed or added relevant lines in 1 file are covered.
• 100 unchanged lines in 24 files lost coverage.
• Overall coverage decreased (-0.07%) to 90.984%

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Files with Coverage Reduction	New Missed Lines	%
chia/data_layer/download_data.py	1	83.58%
chia/_tests/util/test_priority_mutex.py	1	99.66%
chia/full_node/full_node_api.py	1	81.8%
chia/_tests/util/test_action_scope.py	1	99.01%
chia/timelord/timelord_launcher.py	1	70.07%
chia/_tests/util/full_sync.py	1	88.95%
chia/server/server.py	1	81.46%
chia/rpc/wallet_rpc_api.py	1	89.31%
chia/introducer/introducer.py	1	84.78%
chia/util/json_util.py	1	88.46%

Totals
Change from base Build 9697143912:	-0.07%
Covered Lines:	101668
Relevant Lines:	111696

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💛 - Coveralls