Changes after PR review.

- removed additions to REAME.md
- changed coding style of conditional PSKKEM announce
  as requested.

README.md

@@ -113,7 +113,6 @@ CVE-2020-12966 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb
 * Add TLS 1.2 ciphersuite ECDHE_PSK_WITH_AES_128_GCM_SHA256 from RFC 8442
 * Expand CAAM support with QNX to include i.MX8 boards and add AES-CTR support
 * Enhanced glitching protection by hardening the TLS encrypt operations
-* The TLS Extension for PSK Key Exchange Modes is now always included in a ClientHello (with PSK enabled) to improve inter-op.
 
 ## Math and Performance
 

src/tls.c

@@ -11386,16 +11386,18 @@ int TLSX_PopulateExtensions(WOLFSSL* ssl, byte isServer)
     #endif /* !NO_PSK */
         #if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
 
-            #ifndef NO_TLSX_PSKKEM_PLAIN_ANNOUNCE
             /* Some servers do not generate session tickets unless
-             * the extension is seen in a non-resume client hello */
+             * the extension is seen in a non-resume client hello.
-            if (1) {
+             * We used to send it only if we were otherwise using PSK.
-                (void)usingPSK;
+             * Now always send it. Define NO_TLSX_PSKKEM_PLAIN_ANNOUNCE
-            #else
+             * to revert to the old behaviour. */
-            if (usingPSK) {
+            #ifdef NO_TLSX_PSKKEM_PLAIN_ANNOUNCE
+            if (usingPSK)
             #endif
+            {
                 byte modes;
 
+                (void)usingPSK;
                 /* Pre-shared key modes: mandatory extension for resumption. */
                 modes = 1 << PSK_KE;
             #if !defined(NO_DH) || defined(HAVE_ECC) || \