Remove unnecessary ChangeLog entry

This bug was never present in a release, so no ChangeLog entry is
needed.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/ChangeLog.d/restore-x509-functions-to-public.txt b/ChangeLog.d/restore-x509-functions-to-public.txt
deleted file mode 100644
index fef0764..0000000
--- a/ChangeLog.d/restore-x509-functions-to-public.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Bugfix
-   * Restore X509 functions erroneously removed from the public interface:
-     mbedtls_x509_dn_get_next(), mbedtls_x509_serial_gets(),
-     mbedtls_x509_time_cmp(), mbedtls_x509_time_gmtime(),
-     mbedtls_x509_time_is_past(), mbedtls_x509_time_is_future()
-     mbedtls_x509_parse_subject_alt_name(), mbedtls_x509_free_subject_alt_name()