Detaches a given child window from the window.
Original signature is '- (void)removeChildWindow:(NSWindow *)childWindow'
Available in Mac OS X v10.2 and later.


- childWindow (NSWindow)
- The child window to detach.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)