TrafficControllerTest - trivial simplification

Bug: 235286176
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I25158126c968707f44f595f731547a8bd9bb503d
(cherry picked from commit ced3531ad5124234909b2e29d46b222197739134)
Merged-In: I25158126c968707f44f595f731547a8bd9bb503d
diff --git a/service/native/TrafficControllerTest.cpp b/service/native/TrafficControllerTest.cpp
index 6c2cd9f..33b2073 100644
--- a/service/native/TrafficControllerTest.cpp
+++ b/service/native/TrafficControllerTest.cpp
@@ -673,7 +673,7 @@
     BpfMap<uint64_t, UidTagValue> mCookieTagMap;
 
     void SetUp() {
-        mCookieTagMap.reset(android::bpf::mapRetrieveRW(COOKIE_TAG_MAP_PATH));
+        mCookieTagMap.init(COOKIE_TAG_MAP_PATH);
         ASSERT_TRUE(mCookieTagMap.isValid());
     }