--- a/toolkit/content/aboutTelemetry.js
+++ b/toolkit/content/aboutTelemetry.js
@@ -1439,82 +1439,16 @@ function RenderObject(aObject) {
   }
   output = "{\"" + keys[0] + "\":\u00A0" + JSON.stringify(aObject[keys[0]]);
   for (let i = 1; i < keys.length; i++) {
     output += ", \"" + keys[i] + "\":\u00A0" + JSON.stringify(aObject[keys[i]]);
   }
   return output + "}";
 }
 
-var KeyValueTable = {
-  /**
-   * Returns a 2-column table with keys and values
-   * @param aMeasurements Each key in this JS object is rendered as a row in
-   *                      the table with its corresponding value
-   * @param aKeysLabel    Column header for the keys column
-   * @param aValuesLabel  Column header for the values column
-   */
-  render: function KeyValueTable_render(aMeasurements, aKeysLabel, aValuesLabel) {
-    let table = document.createElement("table");
-    this.renderHeader(table, aKeysLabel, aValuesLabel);
-    this.renderBody(table, aMeasurements);
-    return table;
-  },
-
-  /**
-   * Create the table header
-   * Tabs & newlines added to cells to make it easier to copy-paste.
-   *
-   * @param aTable Table element
-   * @param aKeysLabel    Column header for the keys column
-   * @param aValuesLabel  Column header for the values column
-   */
-  renderHeader: function KeyValueTable_renderHeader(aTable, aKeysLabel, aValuesLabel) {
-    let headerRow = document.createElement("tr");
-    aTable.appendChild(headerRow);
-
-    let keysColumn = document.createElement("th");
-    keysColumn.appendChild(document.createTextNode(aKeysLabel + "\t"));
-    let valuesColumn = document.createElement("th");
-    valuesColumn.appendChild(document.createTextNode(aValuesLabel + "\n"));
-
-    headerRow.appendChild(keysColumn);
-    headerRow.appendChild(valuesColumn);
-  },
-
-  /**
-   * Create the table body
-   * Tabs & newlines added to cells to make it easier to copy-paste.
-   *
-   * @param aTable Table element
-   * @param aMeasurements Key/value map
-   */
-  renderBody: function KeyValueTable_renderBody(aTable, aMeasurements) {
-    for (let [key, value] of Object.entries(aMeasurements)) {
-      // use .valueOf() to unbox Number, String, etc. objects
-      if (value &&
-         (typeof value == "object") &&
-         (typeof value.valueOf() == "object")) {
-        value = RenderObject(value);
-      }
-
-      let newRow = document.createElement("tr");
-      aTable.appendChild(newRow);
-
-      let keyField = document.createElement("td");
-      keyField.appendChild(document.createTextNode(key + "\t"));
-      newRow.appendChild(keyField);
-
-      let valueField = document.createElement("td");
-      valueField.appendChild(document.createTextNode(value + "\n"));
-      newRow.appendChild(valueField);
-    }
-  }
-};
-
 var GenericTable = {
 
   defaultHeadings: [
     bundle.GetStringFromName("keysHeader"),
     bundle.GetStringFromName("valuesHeader")
   ],
 
   /**