Uninstall mariadb package, use mysql2 instead

Author: mhaidarhanif

package.json

@@ -15,7 +15,6 @@
     "express": "~4.16.0",
     "http-errors": "~1.6.2",
     "jade": "~1.11.0",
-    "mariadb": "^0.7.0",
     "morgan": "~1.9.0",
     "mysql2": "^1.6.1",
     "sequelize": "^4.38.0"