diff --git a/Source/Shaders/Builtin/Functions/ellipsoidNew.glsl b/Source/Shaders/Builtin/Functions/ellipsoidNew.glsl
deleted file mode 100644
index b1bd61fce129..000000000000
--- a/Source/Shaders/Builtin/Functions/ellipsoidNew.glsl
+++ /dev/null
@@ -1,14 +0,0 @@
-/**
- * DOC_TBA
- *
- * @name czm_ellipsoidNew
- * @glslFunction
- *
- */
-czm_ellipsoid czm_ellipsoidNew(vec3 center, vec3 radii)
-{
-    vec3 inverseRadii = vec3(1.0 / radii.x, 1.0 / radii.y, 1.0 / radii.z);
-    vec3 inverseRadiiSquared = inverseRadii * inverseRadii;
-    czm_ellipsoid temp = czm_ellipsoid(center, radii, inverseRadii, inverseRadiiSquared);
-    return temp;
-}