add a few more drop functions

internal/db/migrations/postgres/50_session.down.sql

@@ -7,6 +7,8 @@ begin;
   drop function insert_session_state;
   drop function insert_new_session_state;
   drop function insert_session;
+  drop function update_session_state_on_termination_reason;
+  drop function insert_session_state;
 
 
   delete

internal/db/migrations/postgres/51_connection.down.sql

@@ -5,5 +5,6 @@ begin;
   drop table session_connection;
   drop table session_connection_closed_reason_enm;
   drop function insert_session_connection_state;
-
+  drop function insert_new_connection_state;
+  drop function update_connection_state_on_closed_reason;
 commit;