Previously the metrics adapters for client-go were registered in an init function.
This resulted in clobbering default metrics providers when these packages are imported
into an application that leverages the default client-go metrics registry.
Instead, let's only register these adapters when requested.
Signed-off-by: Stephen Heckler <sheckler@cloudflare.com>
SD Managers take over responsibility for SD metrics registration
---------
Signed-off-by: Paulin Todev <paulin.todev@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
