Minor tweaks

Source/Editor/Windows/Assets/AnimationGraphWindow.cs

@@ -344,7 +344,6 @@ namespace FlaxEditor.Windows.Assets
             // Load surface graph
             if (_surface.Load())
             {
-                // Error
                 Editor.LogError("Failed to load animation graph surface.");
                 return true;
             }

Source/Editor/Windows/Assets/MaterialWindow.cs

@@ -284,7 +284,6 @@ namespace FlaxEditor.Windows.Assets
                 var mainNode = _surface.FindNode(1, 1) as Surface.Archetypes.Material.SurfaceNodeMaterial;
                 if (mainNode == null)
                 {
-                    // Error
                     Editor.LogError("Failed to find main material node.");
                 }
                 return mainNode;

Source/Editor/Windows/Assets/ParticleEmitterWindow.cs

@@ -238,7 +238,6 @@ namespace FlaxEditor.Windows.Assets
             // Load surface graph
             if (_surface.Load())
             {
-                // Error
                 Editor.LogError("Failed to load Particle Emitter surface.");
                 return true;
             }

Source/Editor/Windows/Assets/VisualScriptWindow.cs

@@ -1131,7 +1131,6 @@ namespace FlaxEditor.Windows.Assets
                 // Save data to the asset
                 if (_asset.SaveSurface(value, ref meta))
                 {
-                    // Error
                     _surface.MarkAsEdited();
                     Editor.LogError("Failed to save surface data");
                 }
@@ -1192,7 +1191,6 @@ namespace FlaxEditor.Windows.Assets
             // Load surface graph
             if (_surface.Load())
             {
-                // Error
                 Editor.LogError("Failed to load Visual Script surface.");
                 return true;
             }