Remove libcoro dependency

[xis19]

This is to address #4348

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[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: 80b1825
• Duration 0:22:37
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[jzhou77]

LGTM. Just want to make sure windows builds fine.

[jzhou77]

does boost support coroutine on windows now?

[jzhou77]

The PR title should be "removing libcoro", as we use boost::coroutine2 instead.

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: 80b1825
• Duration 0:39:16
• Result: ❌ FAILED
• Error: Error while executing command: if python3 -m joshua.joshua list --stopped | grep ${ENSEMBLE_ID} | grep -q 'pass=10[0-9][0-9][0-9]'; then echo PASS; else echo FAIL && exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 80b1825
• Duration 0:46:37
• Result: ❌ FAILED
• Error: Error while executing command: if python3 -m joshua.joshua list --stopped | grep ${ENSEMBLE_ID} | grep -q 'pass=10[0-9][0-9][0-9]'; then echo PASS; else echo FAIL && exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 80b1825
• Duration 0:52:49
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)
• Cluster Test Logs zip file of the test logs (available for 30 days)

[atn34]

Has this changed? Is there still a performance regression?

[jzhou77]

good point. not sure what benchmark can show the regression? @xis19 , before merging, let's find the benchmark and compare performance first.

[xis19]

Would circus work? Or it is already retired?