Update composer.json

Author: ecomteck

composer.json

@@ -2,9 +2,6 @@
   "name": "ecomteck/magento2-order-comments",
   "description": "Magento 2 Module to add  a comment field above the place order button in the checkout",
   "version": "0.0.1",
-  "require": {
-    "php": "~7.0.0|~7.1.0"
-  },
   "type": "magento2-module",
   "keywords": ["magento2"],
   "license": "MIT",