http: fix event listener leak

Alternative to https://github.com/nodejs/node/pull/29244

'drain' needs to always to be removed together with 'data' and 'end' when detaching the socket.

Haven't had time to do a unit test yet.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines