Add time helpers for std::chrono::steady_clock
random: Add FastRandomContext::rand_uniform_delay
Remove unused GetTimeSeconds
Seems confusing to have this helper when it is possible to get the system time in a type-safe way by simply calling std::chrono::system_clock::now (C++11).
This patch replaces GetTimeSeconds and removes it:
- in bitcoin-cli.cpp by system_clock
- in test/fuzz/fuzz.cpp by steady_clock
This is a backport of core#24921 and core#25102