Disable Async merge.
I/O failures seen on one specific device intermittently.

Bug: 219642530
Test: OTA
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: I5b6fbfb13e40b15b25324b70efef11aede916596
diff --git a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_core.cpp b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_core.cpp
index 9dd52b4..b988c7b 100644
--- a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_core.cpp
+++ b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_core.cpp
@@ -694,8 +694,10 @@
     // During selinux init transition, libsnapshot will propagate the
     // status of io_uring enablement. As properties are not initialized,
     // we cannot query system property.
+    //
+    // TODO: b/219642530: Intermittent I/O failures observed
     if (is_io_uring_enabled_) {
-        return true;
+        return false;
     }
 
     // Finally check the system property