chore: revert changes to playground used for testing (#6292)

tests/bootstrap.js

@@ -85,13 +85,13 @@
     // List of scripts to load in compressed mode, instead of
     // requires.  Paths relative to root.
     compressedScripts: [
-      'build/blockly_compressed.js',
-      'build/blocks_compressed.js',
-      'build/dart_compressed.js',
-      'build/javascript_compressed.js',
-      'build/lua_compressed.js',
-      'build/php_compressed.js',
-      'build/python_compressed.js',
+      'blockly_compressed.js',
+      'blocks_compressed.js',
+      'dart_compressed.js',
+      'javascript_compressed.js',
+      'lua_compressed.js',
+      'php_compressed.js',
+      'python_compressed.js',
     ],
 
     // Additional scripts to be loaded after Blockly is loaded,

tests/playground.html

@@ -8,7 +8,6 @@
      compressed when it is being hosted or on Internet Explorer.  -->
 <script>
   var BLOCKLY_BOOTSTRAP_OPTIONS = {
-    loadCompressed: true,
     additionalScripts: [
       'msg/messages.js',
       'tests/playgrounds/screenshot.js',