Revert "Support directory seeding from upload input"
Revert "Support directory seeding from upload input"

This reverts commit 4b64ab9791e369b7ced2a26135369c369450cbd0.

loon3/instant.io,VoR0220/instant.io,jhiesey/instant.io,cesar2535/instant.io,loon3/instant.io,joeldom/instant.io,cesar2535/instant.io,cesar2535/instant.io,joeldom/instant.io,feross/instant.io,corona6/instant.io,feross/instant.io,loon3/instant.io,VoR0220/instant.io,TribeMedia/instant.io,bradparks/instant.io,TribeMedia/instant.io,corona6/instant.io,VoR0220/instant.io,bradparks/instant.io,joeldom/instant.io,jhiesey/instant.io,bradparks/instant.io,corona6/instant.io,jhiesey/instant.io,TribeMedia/instant.io,feross/instant.io