disable auto scriptLoad (systemjs#1075)

Author: guybedford

lib/amd.js

@@ -9,10 +9,6 @@
 
   hook('fetch', function(fetch) {
     return function(load) {
-      if (load.metadata.format === 'amd' 
-          && !load.metadata.authorization 
-          && load.metadata.scriptLoad !== false)
-        load.metadata.scriptLoad = true;
       // script load implies define global leak
       if (load.metadata.scriptLoad && isBrowser)
         this.get('@@amd-helpers').createDefine();

lib/global.js

@@ -14,15 +14,6 @@ hook('fetch', function(fetch) {
   return function(load) {
     if (load.metadata.exports && !load.metadata.format)
       load.metadata.format = 'global';
-
-    // A global with exports, no globals and no deps
-    // can be loaded via a script tag
-    if (load.metadata.format == 'global' && !load.metadata.authorization
-        && load.metadata.exports && !load.metadata.globals 
-        && (!load.metadata.deps || load.metadata.deps.length == 0)
-        && load.metadata.scriptLoad !== false)
-      load.metadata.scriptLoad = true;
-
     return fetch.call(this, load);
   };
 });

lib/register.js

@@ -473,9 +473,6 @@ function createEntry() {
         load.metadata.format = 'defined';
         return '';
       }
-      
-      if (load.metadata.format == 'register' && !load.metadata.authorization && load.metadata.scriptLoad !== false)
-        load.metadata.scriptLoad = true;
 
       load.metadata.deps = load.metadata.deps || [];