Revert "adb: create shell protocol class."

This CL broke the mac build. I'll revert for now and take a look at how to get it working next week.

This reverts commit 5aba4b04a36f508106beedd7ee7c922b8d2af6e6.

Change-Id: Icb3e015250bcbbc69a45675a1358699ebe01e77b
4 files changed