Removing participant declaration in sequence diagram

TS-0020-WebSocket_Protocol_Binding.md

@@ -496,8 +496,6 @@ Figure A.1-1 illustrates a message flow for registration of an ADN-AE to an IN-C
 ```mermaid
 %%{init: { 'sequence': {'mirrorActors': false, 'actorFontSize': 2, 'noteFontSize':10} } }%%
 sequenceDiagram
-Participant AE
-Participant IN-CSE
 
 Note over AE, IN-CSE: 1) TCP connection and Security<br/>Association Establishment
 AE ->> IN-CSE: 2) WSS client handshake