[asan][NFC] Fix "not used" warning in test
diff --git a/compiler-rt/lib/asan/tests/asan_interface_test.cpp b/compiler-rt/lib/asan/tests/asan_interface_test.cpp
index a93d9ec..ffc3226 100644
--- a/compiler-rt/lib/asan/tests/asan_interface_test.cpp
+++ b/compiler-rt/lib/asan/tests/asan_interface_test.cpp
@@ -172,8 +172,7 @@
   BAD_ACCESS(array, 40);
   BAD_ACCESS(array, 60);
   BAD_ACCESS(array, 79);
-  char value;
-  EXPECT_DEATH(value = Ident(array[40]), kUseAfterPoisonErrorMessage);
+  EXPECT_DEATH(Ident(array[40]), kUseAfterPoisonErrorMessage);
   __asan_unpoison_memory_region(array + 40, 40);
   // access previously poisoned memory.
   GOOD_ACCESS(array, 40);