fix: Remove sockmap fast tcp redirect

[jschwinger233]

Background

#481 introduced sockmap-based tcp fast redirect, however, it was opt-outed at #518 as we pinpointed a serious kernel bug.

Recently, more sockmap bugs have been found by me and community:

• https://github.com/jschwinger233/bpf_sockmap_mptcp_bug_reproducer
• https://github.com/jschwinger233/sockmap_sk_skb_stream_eof_bug_reproducer
• https://github.com/jschwinger233/sockmap_bpf_ktime_get_coarse_ns_bug_reproducer

Issues are also reported by 6.12.62 OpenWrt users:

evel=fatal msg="load eBPF objects: field LocalTcpSockops: program local_tcp_sockops: load program: invalid argument: program of this type cannot use helper bpf_get_current_task#35 (6 line(s) omitted)"

Sockmap has been seen as one of the buggiest kernel features: https://lwn.net/Articles/1038360/

I don't believe sockmap can be production-ready in a handful of years, let's remove sockmap from dae, speed up the bpf loading process, make dae available for 6.12.62 OpenWrt.

Checklist

• The Pull Request has been fully tested
• There's an entry in the CHANGELOGS
• There is a user-facing docs PR against https://github.com/daeuniverse/dae

Full Changelogs

• [Implement ...]

Issue Reference

Closes #[issue number]

Test Result

[dae-prow]

🧪 Since the PR has been fully tested, please consider merging it.

[jschwinger233]

#913 will fix the CI failures, let's merge #913 and rebase.