Remove useless timeouts in p2p_timeouts

Summary: The timeouts apply to the python framework and not the node, causing some rare failures on the very slow CI machines. The test already checks for the timeout condition with the log so the python timeouts are confusing at best and can be removed.

Test Plan:

./test/functional/test_runner.py p2p_timeouts

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D17654