misc: 清除冗余的代码

Reviewed-on: PostGuard/Canon#75
Co-authored-by: Lan_G <2911328695@qq.com>
Co-committed-by: Lan_G <2911328695@qq.com>

Canon.Core/Abstractions/ICCodeGenerator.cs

@@ -1,11 +0,0 @@
-using Canon.Core.CodeGenerators;
-
-namespace Canon.Core.Abstractions;
-
-/// <summary>
-/// 支持生成C语言代码的接口
-/// </summary>
-public interface ICCodeGenerator
-{
-    public void GenerateCCode(CCodeBuilder builder);
-}