build: Remove dependencies on fmtlib

With C++23, we can replace fmt::format with std::format and fmt::print
with stdplus::print. This allows us to migrate to std::print once the
support is available.

Change-Id: I790901fb3b96d815275a3919e1fb90973189fc02
Signed-off-by: Willy Tu <wltu@google.com>
7 files changed