refactor(el): Deregister TCP socket at shutdown (not only at close)
refactor(el): Deregister TCP socket at shutdown (not only at close)

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