removed the use of deprecated go.opentelemetry.io/collector/model

exporter/prometheusexporter/collector.go

@@ -20,7 +20,6 @@ import (
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/model"
-	"go.opentelemetry.io/collector/model/pdata"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
 	conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
@@ -223,7 +222,7 @@ func (c *collector) convertDoubleHistogram(metric pmetric.Metric, resourceAttrs
 		e := ip.Exemplars().At(i)
 
 		labels := make(prometheus.Labels, e.FilteredAttributes().Len())
-		e.FilteredAttributes().Range(func(k string, v pdata.Value) bool {
+		e.FilteredAttributes().Range(func(k string, v pcommon.Value) bool {
 			labels[k] = v.AsString()
 			return true
 		})

exporter/prometheusexporter/collector_test.go

@@ -21,7 +21,6 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	io_prometheus_client "github.com/prometheus/client_model/go"
 	"github.com/stretchr/testify/require"
-	"go.opentelemetry.io/collector/model/pdata"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
 	conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
@@ -139,7 +138,7 @@ func TestConvertDoubleHistogramExemplar(t *testing.T) {
 		for k, v := range e.Labels {
 			pde.FilteredAttributes().InsertString(k, v)
 		}
-		pde.SetTimestamp(pdata.NewTimestampFromTime(e.Timestamp))
+		pde.SetTimestamp(pcommon.NewTimestampFromTime(e.Timestamp))
 	}
 
 	pMap := pcommon.NewMap()

exporter/prometheusexporter/go.mod

@@ -12,7 +12,6 @@ require (
 	github.com/prometheus/prometheus v0.35.1-0.20220503184552-2381d7be5731
 	github.com/stretchr/testify v1.7.1
 	go.opentelemetry.io/collector v0.50.1-0.20220429151328-041f39835df7
-	go.opentelemetry.io/collector/model v0.50.0
 	go.opentelemetry.io/collector/pdata v0.50.1-0.20220429151328-041f39835df7
 	go.opentelemetry.io/collector/semconv v0.50.1-0.20220429151328-041f39835df7
 	go.uber.org/zap v1.21.0