Remove file URL from publications entry

Removed the file URL from the publications YAML.

Author: niryosef

_data/publications.yml

@@ -122,7 +122,7 @@
   pmcid:
   openaccess:
   doi: 
-  file: https://zenodo.org/records/19560629
+  file: 
   filetype:
   biorxiv: 
   arxiv: