Revert "edX Course/Library Import/Export API"

This reverts commit c94abd2705.

cms/templates/export.html

@@ -33,30 +33,6 @@ else:
   require(["js/factories/export"], function(ExportFactory) {
       ExportFactory(hasUnit, editUnitUrl, courselikeHomeUrl, is_library, errMsg);
   });
-
-## Even though there isn't an export error, we should still show contextual
-## error popups if supplied.
-%elif raw_err_msg:
-  var errMsg = ${json.dumps(raw_err_msg)};
-
-  require(['gettext', 'js/views/feedback_prompt'], function(gettext, PromptView) {
-    dialog = new PromptView({
-      title: gettext('There has been an error.'),
-      message: errMsg,
-      intent: 'error',
-      actions: {
-        primary: {
-          text: gettext('Continue'),
-          click: function(view) {
-            view.hide();
-          }
-        }
-      }
-    });
-
-    $('body').addClass('js');
-    dialog.show();
-  });
 %endif
 </%block>
 

cms/templates/import.html

@@ -53,7 +53,7 @@ else:
 
       </div>
 
-      <form id="fileupload" method="post" action="${import_url}" enctype="multipart/form-data" class="import-form">
+      <form id="fileupload" method="post" enctype="multipart/form-data" class="import-form">
 
         ## Translators: ".tar.gz" is a file extension, and files with that extension are called "gzipped tar files": these terms should not be translated
         <h2 class="title">