Removed old notation

theories/logrel/session_types.v

@@ -136,6 +136,4 @@ Notation "<!!> A ; P" :=
   (lsty_send A P) (at level 20, A, P at level 200) : lsty_scope.
 Notation "<??> A ; P" :=
   (lsty_recv A P) (at level 20, A, P at level 200) : lsty_scope.
-Infix "<+++>" := lsty_select (at level 60) : lsty_scope.
-Infix "<&&&>" := lsty_branch (at level 85) : lsty_scope.
 Infix "<++++>" := lsty_app (at level 60) : lsty_scope.