Remove TLS 1.2 exception about EC J-PAKE and PSA Crypto

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/docs/use-psa-crypto.md b/docs/use-psa-crypto.md
index b22d37f..11442ed 100644
--- a/docs/use-psa-crypto.md
+++ b/docs/use-psa-crypto.md
@@ -86,7 +86,6 @@
 
 Current exceptions:
 
-- EC J-PAKE (when `MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED` is defined)
 - finite-field (non-EC) Diffie-Hellman (used in key exchanges: DHE-RSA,
   DHE-PSK)