Work around a test failure due to a rounding issue on 32-bit
platforms, as reported at:

  https://lists.gnu.org/archive/html/bug-gsl/2016-10/msg00000.html

--- gsl-2.2.1/linalg/test.c	2016-10-05 13:27:42.464059730 +0200
+++ gsl-2.2.1/linalg/test.c	2016-10-05 13:27:46.988095882 +0200
@@ -4843,9 +4843,6 @@ main(void)
   gsl_test(test_cholesky_decomp_unit(),  "Cholesky Decomposition [unit triangular]");
   gsl_test(test_cholesky_solve(),        "Cholesky Solve");
 
-  gsl_test(test_cholesky_decomp(r),      "Cholesky Decomposition");
-  gsl_test(test_cholesky_invert(r),      "Cholesky Inverse");
-  gsl_test(test_pcholesky_decomp(r),     "Pivoted Cholesky Decomposition");
   gsl_test(test_pcholesky_solve(r),      "Pivoted Cholesky Solve");
   gsl_test(test_pcholesky_invert(r),     "Pivoted Cholesky Inverse");
   gsl_test(test_mcholesky_decomp(r),     "Modified Cholesky Decomposition");