Remove old js injection point and apploader script

src/index.html

@@ -155,8 +155,5 @@
         <div class="splashLogo"></div>
     </div>
     <div class="mainDrawerHandle"></div>
-
-    <!-- inject:js -->
-    <!-- endinject -->
 </body>
 </html>

src/scripts/apploader.js

@@ -1,51 +0,0 @@
-(function() {
-    function injectScriptElement(src, onload) {
-        if (!src) {
-            return;
-        }
-
-        const script = document.createElement('script');
-        if (window.dashboardVersion) {
-            src += `?v=${window.dashboardVersion}`;
-        }
-        script.src = src;
-        script.setAttribute('async', '');
-
-        if (onload) {
-            script.onload = onload;
-        }
-
-        document.head.appendChild(script);
-    }
-
-    function loadSite() {
-        injectScriptElement(
-            './libraries/alameda.js',
-            function() {
-                // onload of require library
-                injectScriptElement('./scripts/site.js');
-            }
-        );
-    }
-
-    try {
-        Promise.resolve();
-    } catch (ex) {
-        // this checks for several cases actually, typical is
-        // Promise() being missing on some legacy browser, and a funky one
-        // is Promise() present but buggy on WebOS 2
-        window.Promise = undefined;
-        /* eslint-disable-next-line no-restricted-globals -- Explicit check on self needed */
-        self.Promise = undefined;
-    }
-
-    if (!window.Promise) {
-        // Load Promise polyfill if they are not natively supported
-        injectScriptElement(
-            './libraries/npo.js',
-            loadSite
-        );
-    } else {
-        loadSite();
-    }
-})();