Revert "Allow java targets to support 1.8 source / target"

Broke the sdk build. Requires changes in development that aren't available for submission yet.

This reverts commit cdfbe4a8522b9a13ffe6ac1f826a1d6760f87d60.

Change-Id: Ibb655daa05de55c3c947141ddf96a32ca1d87de4
3 files changed