patch-ctypes-callproc-legacy.patch

diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index b0f1e0bd04..80e81fe65c 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1450,29 +1450,8 @@ copy_com_pointer(PyObject *self, PyObject *args)
 }
 #else
 #ifdef __APPLE__
-#ifdef HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH
 #define HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH_RUNTIME \
     __builtin_available(macOS 11.0, iOS 14.0, tvOS 14.0, watchOS 7.0, *)
-#else
-// Support the deprecated case of compiling on an older macOS version
-static void *libsystem_b_handle;
-static bool (*_dyld_shared_cache_contains_path)(const char *path);
-
-__attribute__((constructor)) void load_dyld_shared_cache_contains_path(void) {
-    libsystem_b_handle = dlopen("/usr/lib/libSystem.B.dylib", RTLD_LAZY);
-    if (libsystem_b_handle != NULL) {
-        _dyld_shared_cache_contains_path = dlsym(libsystem_b_handle, "_dyld_shared_cache_contains_path");
-    }
-}
-
-__attribute__((destructor)) void unload_dyld_shared_cache_contains_path(void) {
-    if (libsystem_b_handle != NULL) {
-        dlclose(libsystem_b_handle);
-    }
-}
-#define HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH_RUNTIME \
-    _dyld_shared_cache_contains_path != NULL
-#endif

 static PyObject *py_dyld_shared_cache_contains_path(PyObject *self, PyObject *args)
 {