Remove unused `uris` method

src/annotator/integrations/html-metadata.js

@@ -77,22 +77,6 @@ export class HTMLMetadata {
     return uri;
   }
 
-  /**
-   * Returns all uris for the document being annotated
-   *
-   * @return {string[]}
-   */
-  uris() {
-    const metadata = this.getDocumentMetadata();
-    const uniqueUrls = {};
-    for (let link of metadata.link) {
-      if (link.href) {
-        uniqueUrls[link.href] = true;
-      }
-    }
-    return Object.keys(uniqueUrls);
-  }
-
   /**
    * Return metadata for the current page.
    *

src/annotator/integrations/test/html-metadata-test.js

@@ -196,11 +196,6 @@ describe('HTMLMetadata', function () {
       });
     });
 
-    it('should have unique uris', function () {
-      const uris = testDocument.uris();
-      assert.equal(uris.length, 8);
-    });
-
     it('uri() returns the canonical uri', function () {
       const uri = testDocument.uri();
       assert.equal(uri, metadata.link[5].href);