feat: remove custom hook for zerolog

[lovung]

What type of PR is this?

• Remove custom hook function.
• Un-expose Otel keys.

What this PR does / why we need it (English/Chinese):

Unnecessary.

Which issue(s) this PR fixes:

N/A

[rogerogers]

The logger library already has a defined entry for the hook, I think there is no need to add another one here.

[lovung]

The logger library already has a defined entry for the hook, I think there is no need to add another one here.

@rogerogers OK. Then let me remove config.hookFn

[rogerogers]

In addition, the implementation of this hook form should reference the implementation of the logrus hook form. Here, overloading of the + hook is executed twice, thus this overloading is unnecessary and should be removed.

obs-opentelemetry/logging/zerolog/logger.go

Line 58 in 8af1031

func (l *Logger) CtxLogf(level hlog.Level, ctx context.Context, format string, kvs ...any) {

[lovung]

@rogerogers I have just removed duplicate overloading.