At present connman is always built with --enable-ofono; this configure option should only be enabled when the distro feature '3g' is present (same way as it done for 'wifi').
I've a change in my connman 0.84 that implements this. I'll split it out separately and attach it.
Created attachment 500 [details] Patch
Oh I fixed this.
verified in 2dec760b79bb7e2e79c33c5127fa64685bd86a18