diff --git a/gtsam/nonlinear/internal/ChiSquaredInverse.h b/gtsam/nonlinear/internal/ChiSquaredInverse.h
index e0284c313..dbf83f92b 100644
--- a/gtsam/nonlinear/internal/ChiSquaredInverse.h
+++ b/gtsam/nonlinear/internal/ChiSquaredInverse.h
@@ -22,10 +22,8 @@
 #pragma once
 
 #include <gtsam/3rdparty/cephes/cephes.h>
-#include <gtsam/dllexport.h>
 
 namespace gtsam {
-
 namespace internal {
 
 /**
@@ -34,10 +32,6 @@ namespace internal {
  * The quantile function of the Chi-squared distribution is the quantile of
  * the specific (inverse) incomplete Gamma distribution.
  *
- * We have a dedicated function so we can unit test any issues easily while also
- * allowing it to be updated in the future without any backwards-compatibility
- * issues.
- *
  * @param dofs Degrees of freedom
  * @param alpha Quantile value
  * @return double
@@ -47,5 +41,4 @@ double chi_squared_quantile(const double dofs, const double alpha) {
 }
 
 }  // namespace internal
-
 }  // namespace gtsam
diff --git a/gtsam/nonlinear/tests/testChiSquaredInverse.cpp b/gtsam/nonlinear/tests/testChiSquaredInverse.cpp
deleted file mode 100644
index b9ff64fdb..000000000
--- a/gtsam/nonlinear/tests/testChiSquaredInverse.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-/* ----------------------------------------------------------------------------
-
- * GTSAM Copyright 2010, Georgia Tech Research Corporation,
- * Atlanta, Georgia 30332-0415
- * All Rights Reserved
- * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
-
- * See LICENSE for the license information
-
- * -------------------------------------------------------------------------- */
-
-/*
- * @file testChiSquaredInverse.cpp
- * @date July 10, 2023
- * @author Varun Agrawal
- * @brief Tests for Chi-squared distribution.
- */
-
-#include <CppUnitLite/TestHarness.h>
-#include <gtsam/base/Testable.h>
-#include <gtsam/nonlinear/internal/ChiSquaredInverse.h>
-
-using namespace gtsam;
-
-/* ************************************************************************* */
-TEST(ChiSquaredInverse, ChiSqInv) {
-  double barcSq = internal::chi_squared_quantile(2, 0.99);
-  EXPECT_DOUBLES_EQUAL(9.21034, barcSq, 1e-5);
-}
-
-/* ************************************************************************* */
-int main() {
-  srand(time(nullptr));
-  TestResult tr;
-  return TestRegistry::runAllTests(tr);
-}
-/* ************************************************************************* */