Disable TcpSocketMonitor polling.

Droidfooders are observing lots of crashes in updateSocketStats.
Urgently disable the code until we have a better fix.

Bug: 72512637
Test: netd builds
Merged-In: I13b801aba35319820841007f8785cfd0591f479f
Change-Id: I13b801aba35319820841007f8785cfd0591f479f
(cherry picked from commit bd468abb)