Revert "IO-1257 Accept special characters"

This reverts commit a8ad65000d.

client/src/components/documents-upload/documents-upload.utility.js

@@ -24,7 +24,7 @@ export const handleUpload = (ev, context) => {
   const fileName = ev.file.name || ev.filename;
 
   let key = `${bodyshop.id}/${jobId}/${fileName.replace(
-    /[^a-zA-Z ]/g,
+    /\.[^/.]+$/,
     ""
   )}-${new Date().getTime()}`;
   let extension = fileName.split(".").pop();