SensorService: Fix some warnings
For build-system CFLAGS clean-up, remove unused variables.
Also fix some warnings related to format strings, and signed
comparisons.
Bug: 18632512
Change-Id: I5e48dce36678c12069c0e162b920870de81b89f2
diff --git a/services/sensorservice/vec.h b/services/sensorservice/vec.h
index 24f30ff..a142bad 100644
--- a/services/sensorservice/vec.h
+++ b/services/sensorservice/vec.h
@@ -37,7 +37,7 @@
class vec;
template <typename TYPE, size_t SIZE>
-class vbase;
+struct vbase;
namespace helpers {