Fix some compile warnings

There are six variables defined and assigned some value but not used.
This caused some compile warning messages. These variables are removed
to eliminate the compile warnings.

Test: mmm device/generic/goldfish-opengl, presubmit check.

Change-Id: I854c38ef088aa70363c946e05bd6ab867b206848
Signed-off-by: Dongzhihai <dongzhihai@eswincomputing.com>
3 files changed