changelog: Addressed review comments #5

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/ChangeLog b/ChangeLog
index a25f0ad..ebf8a36 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -594,8 +594,6 @@
 Requirement changes
    * Update the minimum required CMake version to 2.8.12.  This silences a
      warning on CMake 3.19.0. #3801
-   * Sign-magnitude and one's complement representations for signed integers are
-     not supported. Two's complement is the only supported representation.
 
 New deprecations
    * PSA_ALG_CHACHA20 and PSA_ALG_ARC4 have been deprecated.