Rebase cleanup.

Author: gkellogg

lib/compact.js

@@ -46,8 +46,7 @@ module.exports = api;
  * @param activeProperty the compacted property associated with the element
  *          to compact, null for none.
  * @param element the element to compact.
- * @param options the compaction options:
- *          [issuer] a jsonld.IdentifierIssuer to use to label blank nodes.
+ * @param options the compaction options.
  * @param compactionMap the compaction map to use.
  *
  * @return the compacted value.
@@ -134,9 +133,6 @@ api.compact = ({
 
     const rval = {};
 
-    // produce a map of all subjects and name each bnode
-    const issuer = options.issuer || new util.IdentifierIssuer('_:b');
-
     if(options.link && '@id' in element) {
       // store linked element
       if(!(element['@id'] in options.link)) {