replace jest with ava

node_modules/posix-character-classes/index.js

@@ -1,22 +0,0 @@
-'use strict';
-
-/**
- * POSIX character classes
- */
-
-module.exports = {
-  alnum: 'a-zA-Z0-9',
-  alpha: 'a-zA-Z',
-  ascii: '\\x00-\\x7F',
-  blank: ' \\t',
-  cntrl: '\\x00-\\x1F\\x7F',
-  digit: '0-9',
-  graph: '\\x21-\\x7E',
-  lower: 'a-z',
-  print: '\\x20-\\x7E ',
-  punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
-  space: ' \\t\\r\\n\\v\\f',
-  upper: 'A-Z',
-  word: 'A-Za-z0-9_',
-  xdigit: 'A-Fa-f0-9'
-};