[hotfix][metrics] Remove unnecessary ScopeFormats constructor

flink-runtime/src/main/java/org/apache/flink/runtime/metrics/MetricRegistryConfiguration.java

@@ -97,7 +97,7 @@ public class MetricRegistryConfiguration {
 			scopeFormats = ScopeFormats.fromConfig(configuration);
 		} catch (Exception e) {
 			LOG.warn("Failed to parse scope format, using default scope formats", e);
-			scopeFormats = new ScopeFormats();
+			scopeFormats = ScopeFormats.fromConfig(new Configuration());
 		}
 
 		char delim;

flink-runtime/src/main/java/org/apache/flink/runtime/metrics/scope/ScopeFormats.java

@@ -35,27 +35,6 @@ public class ScopeFormats {
 
 	// ------------------------------------------------------------------------
 
-	/**
-	 * Creates all default scope formats.
-	 */
-	public ScopeFormats() {
-		this.jobManagerFormat = new JobManagerScopeFormat(MetricOptions.SCOPE_NAMING_JM.defaultValue());
-
-		this.jobManagerJobFormat = new JobManagerJobScopeFormat(
-			MetricOptions.SCOPE_NAMING_JM_JOB.defaultValue(), this.jobManagerFormat);
-
-		this.taskManagerFormat = new TaskManagerScopeFormat(MetricOptions.SCOPE_NAMING_TM.defaultValue());
-
-		this.taskManagerJobFormat = new TaskManagerJobScopeFormat(
-			MetricOptions.SCOPE_NAMING_TM_JOB.defaultValue(), this.taskManagerFormat);
-
-		this.taskFormat = new TaskScopeFormat(
-				MetricOptions.SCOPE_NAMING_TASK.defaultValue(), this.taskManagerJobFormat);
-
-		this.operatorFormat = new OperatorScopeFormat(
-			MetricOptions.SCOPE_NAMING_OPERATOR.defaultValue(), this.taskFormat);
-	}
-
 	/**
 	 * Creates all scope formats, based on the given scope format strings.
 	 */