[client] Fix legacy routing exclusion routes in kernel mode

[lixmal]

Describe your changes

Same as #4154 but for the kernel mux:

• Move the wrap logic from udpconn to packetconn (which is implemented by udpconn)
• Wrap the shared sock in our custom packetconn
• Remove routes in ice for both shared sock and userspace bind

Issue ticket number and link

Stack

Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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