Revert "add retries to flaky metrics http test"

This reverts commit ad8ab82.

service/telemetry/metrics_test.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"net/http"
 	"testing"
-	"time"
 
 	io_prometheus_client "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
@@ -202,31 +201,11 @@ func createTestMetrics(t *testing.T, mp metric.MeterProvider) {
 }
 
 func getMetricsFromPrometheus(t *testing.T, endpoint string) map[string]*io_prometheus_client.MetricFamily {
-	client := &http.Client{
-		Timeout: 10 * time.Second,
-	}
-	var (
-		req *http.Request
-		err error
-		rr  *http.Response
-	)
-	req, err = http.NewRequest(http.MethodGet, endpoint, nil)
+	req, err := http.NewRequest(http.MethodGet, endpoint, nil)
 	require.NoError(t, err)
 
-	maxRetries := 5
-	for i := 0; i < maxRetries; i++ {
-		rr, err = client.Do(req)
-		if err == nil && rr.StatusCode == http.StatusOK {
-			break
-		}
-
-		if i < maxRetries-1 {
-			time.Sleep(2 * time.Second) // Wait before retrying
-		}
-	}
-	require.NoError(t, err, "failed to get metrics from Prometheus after %d attempts", maxRetries)
-	require.Equal(t, http.StatusOK, rr.StatusCode, "unexpected status code after %d attempts", maxRetries)
-	defer rr.Body.Close()
+	rr, err := http.DefaultClient.Do(req)
+	require.NoError(t, err)
 
 	var parser expfmt.TextParser
 	parsed, err := parser.TextToMetricFamilies(rr.Body)