[cherrypick][1.12] Revert "Event simplification conn subs (#12730)"

[bchocho]

This reverts commit f5de760.

Description

Type of Change

• New feature
• Bug fix
• Breaking change
• Performance improvement
• Refactoring
• Dependency update
• Documentation update
• Tests

Which Components or Systems Does This Change Impact?

• Validator Node
• Full Node (API, Indexer, etc.)
• Move/Aptos Virtual Machine
• Aptos Framework
• Aptos CLI/SDK
• Developer Infrastructure
• Other (specify)

How Has This Been Tested?

Key Areas to Review

Checklist

• I have read and followed the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I identified and added all stakeholders and component owners affected by this change as reviewers
• I tested both happy and unhappy path of the functionality
• I have made corresponding changes to the documentation

[trunk-io]

⏱️ 5h 15m total CI duration on this PR

Job	Cumulative Duration	Recent Runs
rust-targeted-unit-tests	49m	🟩 🟩
windows-build	37m	🟩
rust-unit-tests	36m	🟩
rust-smoke-tests	34m	🟩
execution-performance / single-node-performance	25m	🟩
cli-e2e-tests / run-cli-tests	22m	🟥 🟥
rust-move-tests	20m	🟩 🟩
rust-images / rust-all	17m	🟩
forge-compat-test / forge	16m	🟩
rust-lints	15m	🟩 🟩
forge-e2e-test / forge	14m	🟩
run-tests-main-branch	8m	🟩 🟩
rust-build-cached-packages	8m	🟩
check	4m	🟩
general-lints	3m	🟩 🟩
check-dynamic-deps	3m	🟩 🟩
node-api-compatibility-tests / node-api-compatibility-tests	51s	🟩
semgrep/ci	42s	🟩 🟩
file_change_determinator	21s	🟩 🟩
file_change_determinator	20s	🟩 🟩
file_change_determinator	12s	🟩
execution-performance / file_change_determinator	10s	🟩
permission-check	6s	🟩 🟩
permission-check	5s	🟩 🟩
permission-check	5s	🟩 🟩
permission-check	4s	🟩 🟩
permission-check	3s	🟩
determine-docker-build-metadata	2s	🟩

🚨 3 jobs on the last run were significantly faster/slower than expected

Job	Duration	vs 7d avg	Delta
cli-e2e-tests / run-cli-tests	11m	6m
rust-build-cached-packages	8m	5m
rust-images / rust-all	17m	13m

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[github-actions]

✅ Forge suite realistic_env_max_load success on b0d58f59ce8acb7894dc3eba483f30359f1cb870

two traffics test: inner traffic : committed: 8181 txn/s, latency: 4799 ms, (p50: 4500 ms, p90: 5600 ms, p99: 11400 ms), latency samples: 3526040
two traffics test : committed: 100 txn/s, latency: 1971 ms, (p50: 1800 ms, p90: 2100 ms, p99: 6200 ms), latency samples: 1760
Latency breakdown for phase 0: ["QsBatchToPos: max: 0.207, avg: 0.201", "QsPosToProposal: max: 0.256, avg: 0.209", "ConsensusProposalToOrdered: max: 0.433, avg: 0.413", "ConsensusOrderedToCommit: max: 0.377, avg: 0.362", "ConsensusProposalToCommit: max: 0.792, avg: 0.774"]
Max round gap was 1 [limit 4] at version 1792676. Max no progress secs was 5.156058 [limit 15] at version 1792676.
Test Ok

• Grafana dashboard
• Humio Logs
• Axiom Logs
• Validator CPU Profile
• Fullnode CPU Profile
• Test runner output
• Test run is land-blocking

[github-actions]

✅ Forge suite compat success on 01b24e7e3548382dd25440b39a0438a993387f12 ==> b0d58f59ce8acb7894dc3eba483f30359f1cb870

Compatibility test results for 01b24e7e3548382dd25440b39a0438a993387f12 ==> b0d58f59ce8acb7894dc3eba483f30359f1cb870 (PR)
1. Check liveness of validators at old version: 01b24e7e3548382dd25440b39a0438a993387f12
compatibility::simple-validator-upgrade::liveness-check : committed: 6246 txn/s, latency: 5092 ms, (p50: 4800 ms, p90: 9600 ms, p99: 10900 ms), latency samples: 243620
2. Upgrading first Validator to new version: b0d58f59ce8acb7894dc3eba483f30359f1cb870
compatibility::simple-validator-upgrade::single-validator-upgrade : committed: 1783 txn/s, latency: 15930 ms, (p50: 18800 ms, p90: 21700 ms, p99: 22600 ms), latency samples: 92720
3. Upgrading rest of first batch to new version: b0d58f59ce8acb7894dc3eba483f30359f1cb870
compatibility::simple-validator-upgrade::half-validator-upgrade : committed: 1704 txn/s, latency: 16513 ms, (p50: 19600 ms, p90: 23000 ms, p99: 23800 ms), latency samples: 88620
4. upgrading second batch to new version: b0d58f59ce8acb7894dc3eba483f30359f1cb870
compatibility::simple-validator-upgrade::rest-validator-upgrade : committed: 3547 txn/s, latency: 8880 ms, (p50: 9600 ms, p90: 12700 ms, p99: 12900 ms), latency samples: 145460
5. check swarm health
Compatibility test for 01b24e7e3548382dd25440b39a0438a993387f12 ==> b0d58f59ce8acb7894dc3eba483f30359f1cb870 passed
Test Ok

• Grafana dashboard
• Humio Logs
• Axiom Logs
• Validator CPU Profile
• Fullnode CPU Profile
• Test runner output
• Test run is land-blocking