WARNING: This involves making a system-wide change.. make sure you make backup copies of modified files for your own safety!.
You need to be root to do this
Edit your /etc/profile.d/vasm.sh
The list for the root user begins at line 47
Just comment out the "echo <text> " lines
The list for non-root users begins at line 53, 54, 63, 64 and 65
Comment out the the "echo <text>" lines
Log out or start a new terminal window.