error: fix warnigns on unused variables.
error: fix warnigns on unused variables.

paulmelnikow/libbson,rcsanchez97/libbson,Convey-Compliance/libbson,hanumantmk/libbson,Machyne/libbson,jqk6/libbson,paulmelnikow/libbson,rayyang2000/libbson,bjori/libbson,mapr/libbson,Machyne/libbson,mapr/libbson,jqk6/libbson,remicollet/libbson,rayyang2000/libbson,rcsanchez97/libbson,rayyang2000/libbson,alexeyvo/libbson,mongodbinc-interns/libbson,derickr/libbson,mongodb/libbson,mongodb/libbson,remicollet/libbson,Machyne/libbson,Machyne/libbson,4Second2None/libbson_tmp,rayyang2000/libbson,jqk6/libbson,bjori/libbson,ajdavis/libbson,mongodb/libbson,derickr/libbson,remicollet/libbson,remicollet/libbson,Convey-Compliance/libbson,rcsanchez97/libbson,paulmelnikow/libbson,paulmelnikow/libbson,ajdavis/libbson,mongodbinc-interns/libbson,ksuarz/libbson,hanumantmk/libbson,jqk6/libbson,bjori/libbson,mongodbinc-interns/libbson,ksuarz/libbson,mongodbinc-interns/libbson,paulmelnikow/libbson,derickr/libbson,alexeyvo/libbson,Convey-Compliance/libbson,4Second2None/libbson_tmp,4Second2None/libbson_tmp,derickr/libbson,4Second2None/libbson_tmp,ksuarz/libbson,hanumantmk/libbson,mapr/libbson,hanumantmk/libbson,ajdavis/libbson,alexeyvo/libbson