Remove useless compatibility check

The consequences of opening the file outside the extension is 
self-reinforcing.

gui/scripts/compat.js

@@ -1,37 +0,0 @@
-/* compat.js
-You shouldn't be opening the HTMLs elsewhere. */
-
-// Import modules.
-import texts from "./read.JS";
-
-// Initialize browser data.
-let browser_data = {};
-
-function refresh() {
-  /* Update variable containing the browser data.
-
-  Returns: (dict) the updated browser data
-  */
-
-  browser_data.URL = window.location.href;
-  return (browser_data.URL);
-}
-
-export default class compat {
-  static restrict() {
-    /* Restrict pages containing this function from being loaded outside the extension.
-
-    Returns: (bool) page open is correct
-    */
-
-    refresh();
-
-    const browser_extension_URL_contents = new RegExp(`^(?!file:\/\/|http:\/\/|https:\/\/)(.*-extension:\/\/.*)`);
-    const browser_condition_met = browser_extension_URL_contents.test(browser_data.URL);
-    if (!browser_condition_met) {
-      alert(texts.universal(`invalid_open`));
-    }
-
-    return (browser_condition_met);
-  }
-}

gui/scripts/popup.js

@@ -3,7 +3,6 @@
 */
 
 // Import modules.
-import compat from "./compat.js";
 import texts from "./read.JS";
 
 // Call the main function.