Get rid of the old shit.

packages/@aws-cdk/cdk/lib/index.ts

@@ -8,7 +8,6 @@ export * from './tag-manager';
 export * from './dependency';
 
 export * from './cloudformation-json';
-export * from './cloudformation/cross-account-region-token';
 export * from './reference';
 export * from './cfn-condition';
 export * from './fn';

packages/@aws-cdk/cdk/lib/resource.ts

@@ -5,55 +5,13 @@ import { PhysicalNameGenerator } from "./util/physical-name-generator";
  * Interface for the Resource construct.
  */
 export interface IResource extends IConstruct {
-  readonly physicalName: string;
-
-  readonly tryPhysicalName?: string
-
-  assignPhysicalNameIfNotSet(name?: string): boolean;
-
   physicalNameGenerator(): PhysicalNameGenerator;
 }
 
 /**
  * A construct which represents an AWS resource.
  */
 export abstract class Resource extends Construct implements IResource {
-  private _physicalName?: string;
-
-  public get physicalName(): string {
-    if (this._physicalName === undefined) {
-      throw new Error(`Construct '${this.node.uniqueId}' has been used in a cross account and/or region fashion, ' +
-        'but does not have a physical name. Constructs have to have a physical name in order to be used cross account and/or region`);
-    } else {
-      return this._physicalName;
-    }
-  }
-
-  public get tryPhysicalName(): string | undefined {
-    return this._physicalName;
-  }
-
-  /**
-   * Assigns a physical name if the Construct does not have one already set.
-   *
-   * @param name the physical name to assign to this Construct.
-   *   If not provided, the name will be generated by the object
-   *   returned from {@link #physicalNameGenerator()}
-   * @returns true if the name was assigned
-   *   (that is, the Construct did not have a physical name set),
-   *   false otherwise
-   */
-  public assignPhysicalNameIfNotSet(name?: string): boolean {
-    if (this._physicalName) {
-      return false;
-    }
-
-    name = name || this.physicalNameGenerator().generate();
-
-    this._physicalName = name;
-    return true;
-  }
-
   /**
    * Returns the {@link PhysicalNameGenerator} for this Construct,
    * which will be used in {@link #assignPhysicalNameIfNotSet()}