Clear out select2 references and library (CFM-268)

NOTICE

@@ -84,10 +84,6 @@ files and utilities for further information:
  MIT License
  https://github.com/KnpLabs/php-github-api
 
- Select 2
- MIT License
- https://select2.org/
-
  Shibboleth Embedded Discovery Service (app/webroot/js/eds)
  Apache 2.0
  https://shibboleth.net/products/embedded-discovery-service.html

app/templates/element/javascript.php

@@ -156,16 +156,6 @@
     // Make all select form controls Bootstrappy
     $("select").addClass("form-select");
 
-    // Use select2 library everywhere except
-    // XXX TODO: Find a replacement for Select2 - it is not accessible.
-    // - duet-date
-    // $("select").not("#limit").not(".duet-date__select--month").not(".duet-date__select--year").select2({
-    //   width: '100%',
-    //   tags: true,
-    //   placeholder: "-- Select --",
-    //   allowClear: true
-    // });
-
     // Generic row click handling
     // First capture mouse location to test if we're clicking or drag-selecting (for copy)
     var mouseDownEvent = null;

app/templates/layout/default.php

@@ -58,7 +58,6 @@
     <!-- Load CSS -->
     <?= $this->Html->css([
       'bootstrap/bootstrap.min',
-      'select2/select2.min',
       'co-color',
       'co-base',
       'co-responsive'
@@ -67,8 +66,7 @@
     <!-- Load Bootstrap and jQuery (other scripts at bottom) -->
     <?= $this->Html->script([
       'bootstrap/bootstrap.bundle.min.js',
-      'jquery/jquery.min.js',
-      'select2/select2.min.js'
+      'jquery/jquery.min.js'
     ]) . PHP_EOL ?>
 
     <!-- Include external files and scripts -->

app/templates/layout/iframe.php

@@ -58,7 +58,6 @@
     <!-- Load CSS -->
     <?= $this->Html->css([
       'bootstrap/bootstrap.min',
-      'select2/select2.min',
       'co-color',
       'co-base',
       'co-responsive'
@@ -67,8 +66,7 @@
     <!-- Load Bootstrap and jQuery (other scripts at bottom) -->
     <?= $this->Html->script([
       'bootstrap/bootstrap.bundle.min.js',
-      'jquery/jquery.min.js',
-      'select2/select2.min.js'
+      'jquery/jquery.min.js'
     ]) . PHP_EOL ?>
 
     <!-- Include external files and scripts -->

app/webroot/css/co-base.css

@@ -1831,12 +1831,4 @@ html.dark-mode .btn-default:active {
 footer {
   text-align: center;
   padding: 2em 2em 1em;
-}
-/* Select2 */
-.select2-container--default .select2-selection--single {
-  border: 1px solid var(--cmg-color-bg-006);
-  background-color: var(--cmg-color-body-bg);
-}
-.select2-container--default .select2-selection--single .select2-selection__placeholder {
-  color: var(--cmg-color-txt-soft);
 }