fix: Remove duplicate set_track_dirty_pages call

The `vm_config.track_dirty_pages` field already gets set in
`update_vm_config`. No need to set it to the same value a second time.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

src/vmm/src/resources.rs

@@ -234,11 +234,6 @@ impl VmResources {
         self.vm_config.track_dirty_pages
     }
 
-    /// Configures the dirty page tracking functionality of the microVM.
-    pub fn set_track_dirty_pages(&mut self, dirty_page_tracking: bool) {
-        self.vm_config.track_dirty_pages = dirty_page_tracking;
-    }
-
     /// Add a custom CPU template to the VM resources
     /// to configure vCPUs.
     pub fn set_custom_cpu_template(&mut self, cpu_template: CustomCpuTemplate) {

src/vmm/src/rpc_interface.rs

@@ -565,10 +565,6 @@ impl<'a> PrebootApiController<'a> {
             return Err(err);
         }
 
-        if load_params.enable_diff_snapshots {
-            self.vm_resources.set_track_dirty_pages(true);
-        }
-
         // Restore VM from snapshot
         let vmm = restore_from_snapshot(
             &self.instance_info,