Remove unused global const variable

Bug: 175635923
Test: MODULES-IN-hardware-interfaces-power
Change-Id: Ie73f48df62a17b309c774b2f446db3ee53b3863b
diff --git a/power/aidl/vts/VtsHalPowerTargetTest.cpp b/power/aidl/vts/VtsHalPowerTargetTest.cpp
index c2216f8..907cf00 100644
--- a/power/aidl/vts/VtsHalPowerTargetTest.cpp
+++ b/power/aidl/vts/VtsHalPowerTargetTest.cpp
@@ -73,8 +73,6 @@
 
 const std::vector<int32_t> kEmptyTids = {};
 
-const std::vector<WorkDuration> kNoDurations = {};
-
 const std::vector<WorkDuration> kDurationsWithZero = {
         DurationWrapper(1000L, 1L),
         DurationWrapper(0L, 2L),