Here is an "thinking outside the square" way to do this. Find and install a true type font that is invisible - that is the characters display nothing. Then in the Staff View menu, head to view | Layout and then select that invisible font for the track names.
A website where I found an invisible font is
http://www.angelfire.com/pr/pgpf/if.html The file you need to download is ifw2kxp.zip. In there , you will find a file "invisible1.ttf". Extract this into your c:\Windows\fonts folder and then in the Staff View menu, head to view | Layout, select the invisible font to display your track names. Note: when you list the fonts, the font name itself will be blank as its name is using the actual characters contained in the font, which in this case are invisible. It will still, however, be under "I" for invisible.