Remove the quaternion code

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/QuaternionMath.hlsl.meta

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-guid: 28991169f6e68314ab20d6a0e4aeccec
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ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/QuaternionMath.hlsl

-#ifndef UNITY_QUATERNIONMATH_INCLUDED
-#define UNITY_QUATERNIONMATH_INCLUDED
-
-// Ref: https://cedec.cesa.or.jp/2015/session/ENG/14698.html The Rendering Materials of Far Cry 4
-
-real4 TangentSpaceToQuat(real3 tagent, real3 bitangent, real3 normal)
-{
-    real4 quat;
-    quat.x = normal.y - bitangent.z;
-    quat.y = tangent.z - normal.x;
-    quat.z = bitangent.x - tangent.y;
-    quat.w = 1.0 + tangent.x + bitangent.y + normal.z;
-
-    return normalize(quat);
-}
-
-void QuatToTangentSpace(real4 quaterion, out real3 tangent, out real3 bitangent, out real3 normal)
-{
-    tangent =   real3(1.0, 0.0, 0.0)
-                + real3(-2.0, 2.0, 2.0) * quat.y * quat.yxw
-                + real3(-2.0, -2.0, 2.0) * quat.z * quaternion.zwx;
-
-    bitangent = real3(0.0, 1.0, 0.0)
-                + real3(2.0, -2.0, 2.0) * quat.z * quat.wzy
-                + real3(2.0, -2.0, -2.0) * quat.x * quaternion.yxw;
-
-    normal =    real3(0.0, 0.0, 1.0)
-                + real3(2.0, 2.0, -2.0) * quat.x * quat.zwx
-                + real3(-2.0, 2.0, -2.0) * quat.y * quaternion.wzy;
-}
-
-#endif // UNITY_QUATERNIONMATH_INCLUDED