Merge pull request #223 from wp-cli/no-lock-file

Author: swissspidy

composer.json

@@ -30,7 +30,8 @@
             "dealerdirect/phpcodesniffer-composer-installer": true,
             "johnpbloch/wordpress-core-installer": true
         },
-        "sort-packages": true
+        "sort-packages": true,
+        "lock": false
     },
     "extra": {
         "branch-alias": {