libsnapshot: Temporarily disable flaky ImageManagerTest

This test was causing the failure of vts_libsnapshot_test.
Disable until a fix is found and tests are stable again.

Bug: 149738928
Test: atests vts_libsnapshot_test
Change-Id: Ibbe5cd72aad93d9ade4ac1542f08dec9cd926a3b
Signed-off-by: Alessio Balsini <balsini@google.com>
diff --git a/fs_mgr/libsnapshot/snapshot_test.cpp b/fs_mgr/libsnapshot/snapshot_test.cpp
index d87274d..5d2840f 100644
--- a/fs_mgr/libsnapshot/snapshot_test.cpp
+++ b/fs_mgr/libsnapshot/snapshot_test.cpp
@@ -1767,6 +1767,7 @@
   protected:
     void SetUp() override {
         if (!is_virtual_ab_) GTEST_SKIP() << "Test for Virtual A/B devices only";
+        GTEST_SKIP() << "WIP failure b/149738928";
 
         SnapshotTest::SetUp();
         userdata_ = std::make_unique<LowSpaceUserdata>();
@@ -1774,6 +1775,7 @@
     }
     void TearDown() override {
         if (!is_virtual_ab_) return;
+        return;  // BUG(149738928)
 
         EXPECT_TRUE(!image_manager_->BackingImageExists(kImageName) ||
                     image_manager_->DeleteBackingImage(kImageName));
@@ -1808,10 +1810,6 @@
     std::vector<uint64_t> ret;
     for (uint64_t size = 1_MiB; size <= 512_MiB; size *= 2) {
         ret.push_back(size);
-#ifdef SKIP_TEST_IN_PRESUBMIT
-        // BUG(148889015);
-        break;
-#endif
     }
     return ret;
 }