HDRenderpipeline: Remove unused file - we ahve a converter now

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/Lit/PatchStandardShaderToNewNamingConvention.cginc.meta

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ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/Lit/PatchStandardShaderToNewNamingConvention.cginc

-// NOTE: For performing a project upgrade where you temporarily support both old and new renderpipelines
-//       in the same sahder
-//
-// The basic approach is:
-// Upgrade all your shaders to the new naming convention, using a SubShader that also contains the legacy // renderloop code.
-//
-// 1. Copy HDRenderPipeline Lit.shader into your project
-// 2. Add a SubShader and copy old Standard shader passes into it.
-// 2. Set LOD on subshader to make Unity pick at runtime to use new renderloop shaders or
-// legacy standard shaders based on if SRL is enabled or not.
-// In the legacy standard shader section add
-// #include "PatchStandardShaderToNewNamingConvention.cginc"
-
-// List of name remaps
-#define _MainTex _BaseColorMap
-#define _MainTex_ST _BaseColorMap_ST
-#define _BumpMap _NormalMap
-#define _ParallaxMap _HeightMap
-#define _Parallax _HeightScale
-#define _Glossiness _Smoothness