All Email Notification Need To Go To Profile Email Address Not In Shipping Address Email

Hello Dear cs cart experts we are useing cs cart multivendor 4.3.6

First i want to hide/remove email option on checkout shipping page please see snapshot name cs1 & cs2 or demo1 & demo2

than in My Account > Profile detail > email all email need to go on this email id please see cs3 or demo3

my simple mean is i want to hide/remove email id need to add by buyer in shipping address or billing address & than all emails like orders , profile , forget password need to go on profile email id like

snapshot cs3 or demo3

Please help how can we do it please provide code with file name ??