This enhancement request had been included in the Migrator for Notes to Exchange (MNE) 18.104.22.168
MNE 22.214.171.124 and above will have the following option available:
Admin option to show or hide SSDM Error Log Report button: MNE now offers admins the option of hiding the Error Log Report button on the last SSDM end-user screen. The button is enabled/disabled by a new boolean parameter in the notesdtapp.ini configuration file:
The button is enabled by default (ShowSSDMErrorLogButton=1). Disabling the button may be useful in some environments where accessing a large log file might cause a user desktop to hang.