Review public methods of prometheus remote write exporter

[codeboten]

When updating the code for #7283 I noticed the prometheus remote write exporter appears to be exposing more methods than other exporters. Is this necessary? if not I propose make the following private:

opentelemetry-collector-contrib/exporter/prometheusremotewriteexporter/exporter.go

Line 43 in b37ee4c

type PRWExporter struct {

opentelemetry-collector-contrib/exporter/prometheusremotewriteexporter/exporter.go

Line 56 in b37ee4c

func NewPRWExporter(cfg *Config, buildInfo component.BuildInfo) (*PRWExporter, error) {

[codeboten]

@Aneurysm9 you may know more about this as the code owner for both the prometheusremotewrite and the awsprometheusremotewrite exporters.

[jpkrohling]

cc @gouthamve

[alolita]

@codeboten we (my team) had built this exporter and will take a look at its design. Please add @Aneurysm9 as the owner for this review.

[Aneurysm9]

It looks safe to change the visibility of these methods. The AWS PRW exporter only relies on Config and NewFactory(). I'll get a PR up shortly if the full test suite passes.