fix: remove unintentionally added print in test code (#20391)

accidentally added in https://github.com/coder/coder/pull/19786

Signed-off-by: Callum Styan <callumstyan@gmail.com>

coderd/prometheusmetrics/prometheusmetrics_test.go

@@ -291,7 +291,6 @@ func TestWorkspaceLatestBuildTotals(t *testing.T) {
 					}
 
 					for _, metric := range m.Metric {
-						fmt.Printf("metric: %+v\n", metric)
 						count, ok := tc.Status[codersdk.ProvisionerJobStatus(metric.Label[0].GetValue())]
 						if metric.Gauge.GetValue() == 0 {
 							continue