libweave: Remove mime_type from HttpClient interface

This simplifies platform side implementation. The implementation will
just submit all headers as is.

BUG=brillo:1250
TEST=`FEATURES=test emerge-gizmo libweave buffet`

Change-Id: Id7f968fab5c18ca30223e456c04d36c2a0becb7e
5 files changed
tree: edc6938c6ba58b1e78d95d72fc5dd0ac9a293c16
  1. libweave/