make sure links in changelog are not replaced twice

this now happens directly in the release-it script, so no need
to configure it a second time in package.json

package.json

@@ -57,10 +57,5 @@
     "classNameTemplate": "{classname}",
     "titleTemplate": "{title}",
     "outputDirectory": "output/"
-  },
-  "auto-changelog": {
-    "replaceText": {
-      "([A-Z]+-\\d+)": "[`$1`](https://jira.open-xchange.com/browse/$1)"
-    }
   }
 }