message: BF: Remove unused imports
diff: @@ -7,11 +7,8 @@ import { ECVersion, SchemaKey, relationshipEndToString, SchemaChildKey, SchemaCh
  import SchemaChild from "../Metadata/SchemaChild";
  import Schema from "../Metadata/Schema";
  import EntityClass from "../Metadata/EntityClass";
  -import { StructClass } from "../Metadata/Class";
  import MixinClass from "../Metadata/MixinClass";
  -import CustomAttributeClass from "../Metadata/CustomAttributeClass";
  import RelationshipClass, { RelationshipConstraint } from "../Metadata/RelationshipClass";
  -import KindOfQuantity from "../Metadata/KindOfQuantity";
  import { AnyClassType } from "../Interfaces";
  import { ECProperty } from "../Metadata/Property";
  import { SchemaDeserializationVisitor, AnySchemaChildType } from "source";
  