Revert "Add validateBufferSize and getTransportSize to gralloc.h"

This reverts commit 491378a3d400c45aa63290315d4a5ab8e773de33.

Reason for revert: Break Elfin
Bug: 130669566
Change-Id: I07c6883872ed9033ec5edbf27b0bd423ead39962
2 files changed