Revert "[fix] Added guard to loading PDF viewer"
Revert "[fix] Added guard to loading PDF viewer"

This reverts commit 184d65011e965e67913f7c5f4323a8f5c1a2ada0 which
doesn't fix anything but suppresses messages about the error that is
actually occurring

concordia-publishing-house/pdfjs-rails,harrylclc/pdfjs-rails,ghinaajour/pdfjs-rails,cph/pdfjs-rails