[chore] remove duplicated variable definitions (#8500)

Signed-off-by: Alex Boten <[email protected]>

Author: Alex Boten

exporter/exporterhelper/obsexporter.go

@@ -25,13 +25,7 @@ import (
 )
 
 const (
-	exporterName = "exporter"
-
-	exporterScope = scopeName + nameSep + exporterName
-
-	scopeName = "go.opentelemetry.io/collector/obsreport"
-
-	nameSep = "/"
+	exporterScope = obsmetrics.Scope + obsmetrics.NameSep + obsmetrics.ExporterKey
 )
 
 // ObsReport is a helper to add observability to an exporter.

internal/obsreportconfig/obsmetrics/obsmetrics.go

@@ -8,4 +8,5 @@ package obsmetrics // import "go.opentelemetry.io/collector/internal/obsreportco
 
 const (
 	NameSep = "/"
+	Scope   = "go.opentelemetry.io/collector/obsreport"
 )

processor/processorhelper/obsreport.go

@@ -24,10 +24,7 @@ import (
 )
 
 var (
-	processorName  = "processor"
-	scopeName      = "go.opentelemetry.io/collector/obsreport"
-	nameSep        = "/"
-	processorScope = scopeName + nameSep + processorName
+	processorScope = obsmetrics.Scope + obsmetrics.NameSep + obsmetrics.ProcessorKey
 )
 
 // BuildCustomMetricName is used to be build a metric name following

receiver/receiverhelper/obsreport.go

@@ -25,10 +25,7 @@ import (
 )
 
 const (
-	receiverName  = "receiver"
-	scopeName     = "go.opentelemetry.io/collector/obsreport"
-	nameSep       = "/"
-	receiverScope = scopeName + nameSep + receiverName
+	receiverScope = obsmetrics.Scope + obsmetrics.NameSep + obsmetrics.ReceiverKey
 )
 
 // ObsReport is a helper to add observability to a receiver.

receiver/scraperhelper/obsreport.go

@@ -26,10 +26,7 @@ import (
 )
 
 var (
-	scraperName  = "scraper"
-	scraperScope = scopeName + nameSep + scraperName
-	scopeName    = "go.opentelemetry.io/collector/obsreport"
-	nameSep      = "/"
+	scraperScope = obsmetrics.Scope + obsmetrics.NameSep + obsmetrics.ScraperKey
 )
 
 // ObsReport is a helper to add observability to a scraper.