test(aspect migration mutator): removed unused code.

Author: gdatahub

entity-registry/src/test/java/com/linkedin/metadata/aspect/hooks/AspectMigrationMutatorChainTest.java

@@ -248,10 +248,6 @@ static class TestOwnershipMutator extends AspectMigrationMutator {
     private final long sourceVersion;
     private final long targetVersion;
 
-    TestOwnershipMutator() {
-      this(1L, 2L);
-    }
-
     TestOwnershipMutator(long sourceVersion, long targetVersion) {
       this.sourceVersion = sourceVersion;
       this.targetVersion = targetVersion;