Ir test: remove warnings

Test: pass
Change-Id: If13d93872f0a6eae8914371f78a568f798fd5f93
diff --git a/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp b/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
index 605eabb..ead41c8 100644
--- a/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
+++ b/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
@@ -45,7 +45,6 @@
 
 // Test transmit() for the min and max frequency of every available range
 TEST_F(ConsumerIrHidlTest, TransmitTest) {
-  int32_t freqs;
   bool success;
   hidl_vec<ConsumerIrFreqRange> ranges;
   auto cb = [&](bool s, hidl_vec<ConsumerIrFreqRange> v) {