Remove flaky test and clarify documentation.

Resize doesn't set primitive types to zero.

Test: hidl's run_all_device_tests.sh
Change-Id: I0b7031bc563e3201815ac238ea5a375602393773
diff --git a/test_main.cpp b/test_main.cpp
index 89040c3..2811612 100644
--- a/test_main.cpp
+++ b/test_main.cpp
@@ -177,13 +177,11 @@
 TEST_F(LibHidlTest, VecInitTest) {
     using android::hardware::hidl_vec;
     using std::vector;
-    int32_t empty[3] = {0};
     int32_t array[] = {5, 6, 7};
     vector<int32_t> v(array, array + 3);
 
     hidl_vec<int32_t> hv0(3);  // size
-    EXPECT_EQ(hv0.size(), 3ul);
-    EXPECT_ARRAYEQ(hv0, empty, 3);
+    EXPECT_EQ(hv0.size(), 3ul);  // cannot say anything about its contents
 
     hidl_vec<int32_t> hv1 = v; // copy =
     EXPECT_ARRAYEQ(hv1, array, 3);