Remove jison dependency (microsoft#7863)

Author: rchiodo

package-lock.json

@@ -2686,7 +2686,6 @@
  "hash.js": "^1.1.7",
  "iconv-lite": "^0.4.21",
  "inversify": "^4.11.1",
- "jison": "^0.4.18",
  "jsonc-parser": "^2.0.3",
  "less-plugin-inline-urls": "^1.2.0",
  "line-by-line": "^0.1.6",