Exclude httpcomponents already provided by Android
Exclude httpcomponents already provided by Android

This was causing a warning during builds

Change-Id: Id85ca5e6ccd4fec3b115a5be10ac5ab1d4e73ba0

WeRockStar/iosched,WeRockStar/iosched,jarekankowski/iosched,jarekankowski/iosched,WeRockStar/iosched,jarekankowski/iosched