[GNC] Minor: Why does Cmd-H open Guide?

[Howard M. Fried]

Minor, yet issue:

Gnucash 3.2 (and earlier), Mac OS 10.9 and 10.12.

The keyboard shortcut Command-H is assigned to "Hide Gnucash," the same 
shortcut for hiding all Mac applications. Cmd-H does hide Gnucash, but 
it also simultaneously opens my default web browser, which comes 
frontward to display the HTML version of the Tutorial and Concepts Guide.

I'd very much like for Cmd-H to not open the Guide. I contemplated 
removing the Guide folder from /Applications/Gnucash 
3.2/Gnucash.app/Contents/Resources/en.lproj, but I feared a serious 
crash or freeze when later invoking Cmd-H.

Thank you,
Howard Fried