The core-coder duplicates several TBE-related functions. This issue is to track the removal of duplications in functions such as: * wb_tbe_enc_ivas_fx() vs. wb_tbe_enc_fx() * ivas_wb_tbe_dec_fx() vs wb_tbe_dec_fx() * fb_tbe_enc_ivas_fx() vs fb_tbe_enc_fx() * fb_tbe_dec_ivas_fx() vs fb_tbe_dec_fx() * InitSWBencBuffer_ivas_fx() vs InitSWBencBuffer_fx() * etc. <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary.-->