Cleanup code

Author: a-gubskiy

src/X.PagedList/BasePagedList.cs

@@ -115,8 +115,5 @@ IEnumerator IEnumerable.GetEnumerator()
     ///</summary>
     ///<returns>A non-enumerable copy of this paged list.</returns>
     [Obsolete("This method will be removed in future versions")]
-    public PagedListMetaData GetMetaData()
-    {
-        return new PagedListMetaData(this);
-    }
+    public PagedListMetaData GetMetaData() => new(this);
 }