How to remove submitted & author information on Entityform submission view?
That value is a t() function call here http://cgit.drupalcode.org/entityform/tree/entityform.module#n1092

This is used by the custom EntityClass provided by the EntityForms module in the buildContent function:
http://cgit.drupalcode.org/entityform/tree/entityform.module#n1226

This is PHP class. You have many options:


See if there is a TPL file defined for this submission and alter the default output with your own.
Try to use String Overrides to and set the t() string to "" in the Admin interface for String Overrides. The string you'd look to replace is "Submitted by !name on !date". This may have un-desired affects for other content types and non-Anonymous users ...
Your other option is to replace the custom EntityForms class with 1 of your own using a database query to change the system table's entry for the EntityForms class to 1 you copy-paste of the same name and change the 1 line of code in it :/ (I don't really recommend this.
Lastly you can use hook_page_alter to scan for the string in the content array of the Node on the page and remove the text out.
Or really lastly, you can hide the text using CSS rules.