CSkeleton: Remove default constructor from SBoneTransformInfo

This is unnecessary given initializers are already provided.

This also makes the struct constexpr capable by default as well.

src/Core/Resource/Animation/CSkeleton.h

@@ -19,8 +19,6 @@ struct SBoneTransformInfo
     CVector3f Position{CVector3f::Zero()};
     CQuaternion Rotation{CQuaternion::Identity()};
     CVector3f Scale{CVector3f::One()};
-
-    SBoneTransformInfo() = default;
 };
 
 class CSkeleton : public CResource