Linting: disable rule no-unused-vars for one line.

Author: flore77

lib/adapters/MochaAdapter.js

@@ -11,8 +11,9 @@ export default class MochaAdapter extends EventEmitter {
     mocha.reporter((runner) => {
       this.runner = runner
 
-      let constructor = this.origReporter.bind(this.mocha, this.runner)
-      let origReporterInstance = new constructor()
+      // eslint-disable-next-line no-unused-vars
+      let origReporterInstance = new (this.origReporter.bind(this.mocha,
+        this.runner))()
 
       runner.on('start', this.onStart.bind(this))
       runner.on('suite', this.onSuite.bind(this))