Remove duplicate CHANGES text.

Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9738)

CHANGES

@@ -18,15 +18,6 @@
      the desired value.  The default identifier is 114.
      [Paul Dale]
 
-   *) Early start up entropy quality from the DEVRANDOM seed source has been
-      improved for older Linux systems.  The RAND subsystem will wait for
-      /dev/random to be producing output before seeding from /dev/urandom.
-      The seeded state is stored for future library initialisations using
-      a system global shared memory segment.  The shared memory identifier
-      can be configured by defining OSSL_SHM_SEEDED to the desired value.
-      The default identifier is 114.
-      [Paul Dale]
-
   *) Correct the extended master secret constant on EBCDIC systems. Without this
      fix TLS connections between an EBCDIC system and a non-EBCDIC system that
      negotiate EMS will fail. Unfortunately this also means that TLS connections