[briancullen]

I think I found a workaround that works for me and is fairly simple. 
I copied into Microsoft Word and opened FInd and Replace. 
I turned wildcards on. 

FIND:     \[*\]
REPLACE:      empty

That seems to successfully take out all the chords.

If there are any curly brackets, they can be removed in the same way: 
FIND:    \{*\}
REPLACE:      empty

This will probably suit me rather than using the ChordPro tool. Of course, everyone will differ in what they prefer. I still would love that option within MobileSheets if it is straightforward to add.