Address minor code style comments

move code out of `converter/index.ts`.

change Converter to be an interface.

remove unused function

remove commented out import

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

plugins/code-coverage/src/components/FileExplorer/FileContent.tsx

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import React, { FC, useEffect } from 'react';
+import React, { FC } from 'react';
 import { useApi } from '@backstage/core-api';
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { useAsync } from 'react-use';
@@ -31,14 +31,6 @@ type Props = {
   coverage: FileCoverage;
 };
 
-const getContent = async (value: any) => {
-  let blob = value;
-  if (value instanceof ArrayBuffer || ArrayBuffer.isView(value)) {
-    blob = new Blob([value], { type: 'application/octet-stream' });
-  }
-  return value;
-};
-
 const useStyles = makeStyles(theme => ({
   paper: {
     margin: 'auto',
@@ -97,10 +89,6 @@ export const FileContent = ({ filename, coverage }: Props) => {
       ),
   );
 
-  useEffect(() => {
-    if (value) getContent(value);
-  }, [value]);
-
   const classes = useStyles();
 
   if (loading) {

plugins/code-coverage/src/components/FileExplorer/Highlighter.ts

@@ -20,11 +20,10 @@ import highlight from 'highlight.js';
  * Given a file extension, repo name, and array of code lines, return a Promise resolving
  * to an array of formatted lines with html/css formatting.
  *
- * @param {String} fileExtension The extension of the source file
- * @param {String} repo The name of the code repository
- * @param {Array<String>} lines The source code lines
+ * @param fileExtension The extension of the source file
+ * @param lines The source code lines
  *
- * @returns {Promise<Array<String>>} Promise of formatted lines
+ * @returns Promise of formatted lines
  *
  * @see http://highlightjs.readthedocs.io/en/latest/api.html#highlight-name-value-ignore-illegals-continuation
  */

plugins/code-coverage/src/index.ts

@@ -19,5 +19,3 @@ export {
   isCodeCoverageAvailable,
   isCodeCoverageAvailable as isPluginApplicableToEntity,
 } from './components/Router';
-
-// export { createBackendRouter } from './backend/router';