AMR-WB IO: Macro DIFF_FLOAT_FIX

In lib_dec/amr_wb_dec_fx.c, we have the following "code":

#ifdef _DIFF_FLOAT_FIX_
    PMT( "the code below has been removed in IVAS float (or moved somewhere else), is it ok?" )
#endif

Could please somebody familiar with the code check, whether this is a problem, and if not, whether this message could be either removed or replaced by a comment?