writerfilter: drop no longer generated rtf:fc* tokens

Change-Id: I687ffe2291a5c49f35adca2effb105ac2906d158
writerfilter: drop no longer generated rtf:lcb* tokens

Change-Id: I41932633caacb3eaaea390064b8127418d18a0bf
writerfilter: drop most never generated FIB tokens from doctok

Keep wIdent and lcbSttbfUssr for now, as they are special being the
first / last.

Change-Id: Ib6172fd0b76c4a9e8fbe1ebafc20a7adcb105eab