diff --git a/configure.ac b/configure.ac
index 9ab882429..94ff4824c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -149,40 +149,6 @@ AC_ARG_WITH([libfstdir],
 
 AC_SUBST([libfstdir], $with_libfstdir)
 
-# Flags may be changed after configuring, so this is checked again by
-# weight_test.cc.  The check here is to save time in the common case,
-# or when someone does not run `make check`.
-AC_RUN_IFELSE([AC_LANG_PROGRAM([
-                 #include <cstdio>
-
-                 template <typename T>
-                 bool FloatEqIsReflexive(T m) {
-                   volatile T x = 1.111;
-                   x *= m;
-
-                   T y = 1.111;
-                   y *= m;
-
-                   return x == y;
-                 }
-               ], [
-                 volatile double test_value = 1.1;
-                 if (!FloatEqIsReflexive(static_cast<float>(test_value))) {
-                   printf("float FAIL\n");
-                   return 1;
-                 }
-                 if (!FloatEqIsReflexive(test_value)) {
-                   printf("double FAIL\n");
-                   return 1;
-                 }
-               ])],
-              [echo "Float equality is good"],
-              [AC_MSG_FAILURE(m4_normalize([
-                   Test float equality failed!
-                   Compile with -msse -mfpmath=sse if using g++.
-              ]))],
-              [echo "Ignoring test for cross-compilation"])
-
 AC_CHECK_LIB([dl], dlopen, [DL_LIBS=-ldl])
 AC_SUBST([DL_LIBS])