[js] Marionette support: Remove dev edition enforcement (#2135)

Author: JohanLorenzo

javascript/node/selenium-webdriver/CHANGES.md

@@ -5,6 +5,7 @@
 * Added new wait conditions: `until.urlIs()`, `until.urlContains()`,
    `until.urlMatches()`
 * Added work around for [GeckoDriver bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1274924) raising a type conversion error
+* Removed the mandatory use of Firefox Dev Edition, when using Marionette driver
 
 ## v2.53.2
 

javascript/node/selenium-webdriver/firefox/index.js

@@ -275,14 +275,8 @@ function findGeckoDriver() {
  * @return {!remote.DriverService} .
  */
 function createGeckoDriverService(binary) {
-    // Firefox's Developer Edition is currently required for Marionette.
-  let exe;
-  if (typeof binary === 'string') {
-    exe = Promise.resolve(binary);
-  } else {
-    binary.useDevEdition();
-    exe = binary.locate();
-  }
+  let exe = typeof binary === 'string' ?
+    Promise.resolve(binary) : binary.locate();
 
   let geckoDriver = findGeckoDriver();
   let port =  portprober.findFreePort();