Remove trailing whitespace from user.js

.mozilla/firefox/rick.profile/user.js

@@ -15,6 +15,7 @@ user_pref("full-screen-api.warning.timeout", 0);
 user_pref("privacy.resistFingerprinting", true);
 user_pref("geo.enabled", false);
 // https://spyware.neocities.org/guides/firefox.html
+user_pref("network.connectivity-service.enabled", false);
 user_pref("browser.startup.homepage", "about:blank");
 user_pref("browser.newtabpage.enabled", false);
 user_pref("browser.newtab.preload", false);