Remove duplicate entries from ChangeLog
diff --git a/ChangeLog b/ChangeLog
index 459e810..31273cd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -142,15 +142,6 @@
    * Adds fuzz targets, especially for continuous fuzzing with OSS-Fuzz.
      Contributed by Philippe Antoine (Catena cyber).
 
-API Changes
-   * Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,
-     and the used tls-prf.
-   * Add public API for tls-prf function, according to requested enum.
-   * Add DER-encoded test CRTs to library/certs.c, allowing
-     the example programs ssl_server2 and ssl_client2 to be run
-     if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
-   * The HAVEGE state type now uses uint32_t elements instead of int.
-
 = mbed TLS 2.17.0 branch released 2019-03-19
 
 Features