Apply VS suggestion for refactoring TextureRef.Get

GitOrigin-RevId: 9758a333c4

Shared/Textures.cs

@@ -15,19 +15,16 @@ namespace SemiColinGames {
     }
 
     private readonly string contentPath;
-    private Texture2D texture;
 
     public TextureRef(string contentPath) {
       allTextures.Add(this);
       this.contentPath = contentPath;
     }
 
-    public Texture2D Get {
-      get { return texture; }
-    }
+    public Texture2D Get { get; private set; }
 
     private void Load(ContentManager content) {
-      texture = content.Load<Texture2D>(contentPath);
+      Get = content.Load<Texture2D>(contentPath);
     }
   }