chore: mocha config

Signed-off-by: Jan Kowalleck <[email protected]>

Author: jkowalleck

.mocharc.js

@@ -31,8 +31,6 @@ module.exports = {
   ],
   recursive: true,
   parallel: false, // if true, then some IDEs cannot run it
-  'check-leaks': false,
-  checkLeaks: true, // browser-compat version of setting `check-leaks`
   global: [],
   extension: [
     'spec.js', 'test.js',