libsnapshot: Fix MapAllSnapshotsWithoutSlotSwitch test

IsUserspaceSnapshotUpdateInProgress() would return dm partitions
which are backed by verity; this check is invalid for tests.

Bug: 369964380
Test: vts_libsnapshot_test64 --gtest_filter=SnapshotUpdateTest.MapAllSnapshotsWithoutSlotSwitch
Change-Id: I7d207c472077042ea07b65bf81b64c9c240ae8c7
Signed-off-by: Akilesh Kailash <akailash@google.com>
diff --git a/fs_mgr/libsnapshot/snapshot_test.cpp b/fs_mgr/libsnapshot/snapshot_test.cpp
index 3e5ae2a..1a0d559 100644
--- a/fs_mgr/libsnapshot/snapshot_test.cpp
+++ b/fs_mgr/libsnapshot/snapshot_test.cpp
@@ -2658,9 +2658,6 @@
     // Remove the indicators
     ASSERT_TRUE(sm->PrepareDeviceToBootWithoutSnapshot());
 
-    // Ensure snapshots are still mounted
-    ASSERT_TRUE(sm->IsUserspaceSnapshotUpdateInProgress());
-
     // Cleanup snapshots
     ASSERT_TRUE(sm->UnmapAllSnapshots());
 }