Remove reference to PSA_PAKE_KEY_SHARE_SIZE

The macro PSA_PAKE_KEY_SHARE_SIZE has been removed, we need to remove
references to it from the documentation as well.

Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 482ff68..bb01d53 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -1157,8 +1157,7 @@
  *
  * This macro must expand to a compile-time constant integer.
  *
- * See also #PSA_PAKE_KEY_SHARE_SIZE(\p alg, \p cipher_suite) and
- * #PSA_PAKE_OUTPUT_SIZE(\p alg, \p cipher_suite, \p output).
+ * See also #PSA_PAKE_OUTPUT_SIZE(\p alg, \p cipher_suite, \p output).
  */
 #define PSA_PAKE_OUTPUT_MAX_SIZE