Revert^2 "libvmclient: Take VmCallback in VmInstance::start()"

3da8a161e1e5060b763f76686e63ccb622e76d31

Bug: 381195543
Test: T/H
Change-Id: I0edf795f9c10d444bc59b8ae57bf31671c03dae9
diff --git a/libs/libavf/src/lib.rs b/libs/libavf/src/lib.rs
index 6532ace..50c5e2e 100644
--- a/libs/libavf/src/lib.rs
+++ b/libs/libavf/src/lib.rs
@@ -373,7 +373,7 @@
     let console_in = get_file_from_fd(console_in_fd);
     let log = get_file_from_fd(log_fd);
 
-    match VmInstance::create(service.as_ref(), &config, console_out, console_in, log, None, None) {
+    match VmInstance::create(service.as_ref(), &config, console_out, console_in, log, None) {
         Ok(vm) => {
             // SAFETY: `vm_ptr` is assumed to be a valid, non-null pointer to a mutable raw pointer.
             // `vm` is the only reference here and `vm_ptr` takes ownership.
@@ -398,7 +398,7 @@
     // SAFETY: `vm` is assumed to be a valid, non-null pointer returned by
     // `AVirtualMachine_createRaw`. It's the only reference to the object.
     let vm = unsafe { &*vm };
-    match vm.start() {
+    match vm.start(None) {
         Ok(_) => 0,
         Err(e) => {
             error!("AVirtualMachine_start failed: {e:?}");