refactor(server): Small cosmetic improvement in ua_services_securechannel.c
refactor(server): Small cosmetic improvement in ua_services_securechannel.c

open62541/open62541,open62541/open62541,open62541/open62541,StalderT/open62541,JGrothoff/open62541,StalderT/open62541,open62541/open62541,JGrothoff/open62541,StalderT/open62541,JGrothoff/open62541,StalderT/open62541,jpfr/open62541,JGrothoff/open62541,jpfr/open62541,jpfr/open62541,jpfr/open62541