get rid of serial-port line wrapping logic

[hawkw]

sometimes it makes decisions that just look really terrible. for example:

[     ?.??????][?] │┌LocalApic::start_periodic_timer: interval=10ms
[     ?.??????][*] │├hal_x86_64::interrupt::apic::local: CPUID contains hypervisor info
[     ?.??????][*] │├hal_x86_64::interrupt::apic::local: hypervisor.apic_frequency=Some(
                   ││     1000000,
                   ││ )
[     ?.??????][?] │├hal_x86_64::interrupt::apic::local: determ
                   ││ ined APIC frequency from CPUID hypervisor info, frequency_hz=62

why did you have to write

determ
ined APIC frequency

We should just print the whole log on one line I guess.