Merge branch 'dropzone-alert-removal' into 'master'

Removes the call to alert from dropzone

Closes #232804

See merge request gitlab-org/gitlab!38170

app/assets/javascripts/dropzone_input.js

@@ -70,7 +70,6 @@ export default function dropzoneInput(form, config = { parallelUploads: 2 }) {
     headers: csrf.headers,
     previewContainer: false,
     ...config,
-    processing: () => $('.div-dropzone-alert').alert('close'),
     dragover: () => {
       $mdArea.addClass('is-dropzone-hover');
       form.find('.div-dropzone-hover').css('opacity', 0.7);
@@ -245,8 +244,6 @@ export default function dropzoneInput(form, config = { parallelUploads: 2 }) {
     $uploadingErrorMessage.html(message);
   };
 
-  const closeAlertMessage = () => form.find('.div-dropzone-alert').alert('close');
-
   const insertToTextArea = (filename, url) => {
     const $child = $(child);
     const textarea = $child.get(0);
@@ -266,7 +263,6 @@ export default function dropzoneInput(form, config = { parallelUploads: 2 }) {
     formData.append('file', item, filename);
 
     showSpinner();
-    closeAlertMessage();
 
     axios
       .post(uploadsPath, formData)