doc: new TLSSocket has no secure context options
Unlike all the other tls APIs, if any secure context configuration is required, the caller is responsible for creating the context.
Corrects a doc regression introduced in caa7fa98.
Fix https://github.com/nodejs/node/issues/10538
Checklist
-
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
doc,tls