Re-factor how the sandboxBundleSrc option is passed to PDFScriptingManager

Given that this option isn't used in the Firefox PDF Viewer, we can (ever so slightly) reduce the amount of code needed.

web/pdf_scripting_manager.js

@@ -21,8 +21,8 @@ import { PromiseCapability, shadow } from "pdfjs-lib";
 /**
  * @typedef {Object} PDFScriptingManagerOptions
  * @property {EventBus} eventBus - The application event bus.
- * @property {string} sandboxBundleSrc - The path and filename of the scripting
- *   bundle.
+ * @property {string} [sandboxBundleSrc] - The path and filename of the
+ *   scripting bundle.
  * @property {Object} [externalServices] - The factory that is used when
  *   initializing scripting; must contain a `createScripting` method.
  *   PLEASE NOTE: Primarily intended for the default viewer use-case.
@@ -47,8 +47,6 @@ class PDFScriptingManager {
 
   #ready = false;
 
-  #sandboxBundleSrc = null;
-
   #scripting = null;
 
   #willPrintCapability = null;
@@ -56,16 +54,8 @@ class PDFScriptingManager {
   /**
    * @param {PDFScriptingManagerOptions} options
    */
-  constructor({
-    eventBus,
-    sandboxBundleSrc = null,
-    externalServices = null,
-    docProperties = null,
-  }) {
+  constructor({ eventBus, externalServices = null, docProperties = null }) {
     this.#eventBus = eventBus;
-    if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC || CHROME")) {
-      this.#sandboxBundleSrc = sandboxBundleSrc;
-    }
     this.#externalServices = externalServices;
     this.#docProperties = docProperties;
   }
@@ -421,9 +411,7 @@ class PDFScriptingManager {
     if (this.#scripting) {
       throw new Error("#initScripting: Scripting already exists.");
     }
-    return this.#externalServices.createScripting({
-      sandboxBundleSrc: this.#sandboxBundleSrc,
-    });
+    return this.#externalServices.createScripting();
   }
 
   async #destroyScripting() {