Remove some redundant codes

[Robin-Rhee]

Dear Supreeth,

In this PR, I propose to

1. Remove wildcard hosts for pcscf, icscf, scscf, smsc, and pyhss in mysql.

I have tested in my local environment. These IMF NFs only need one kind of host, either specific or wildcard.
I prefer to keep the specific IP address as the host based on least privilege principle.

P.S. The root user with an empty password that can be accessed from a wildcard host should be treated carefully too.
But maybe you have your design that I haven't figured for now. So I opened a discussion about it before taking next step.

2. Remove a redundant directory of smsc which is originally used to store the pid file in runtime.

This is the work that I forgot to do at last pull request targeting similar directories of pcscf, icscf, and scscf.

[herlesupreeth]

Thanks for the PR.

I have tested in my local environment

Can you please elaborate on how you verified this PR?

[Robin-Rhee]

Can you please elaborate on how you verified this PR?

No strict unit test, bro 😂😂
Just go over the process: 5GC Launch -> IMS Launch -> UE registration -> audio call -> video call
I don't know much test engineering
If there is anything I can give a hand
just feel free to tell me 😄😄

BTW, I should have rebased and sign the commits before issuing a PR
in order to prevent the merge branch commits
I'll try to fix it as soon as possible 🐱‍🏍🐱‍🏍

[herlesupreeth]

I would suggest that you delete the docker volume used by mysql and then relaunch services to check whether this change is working well.

[Robin-Rhee]

I would suggest that you delete the docker volume used by mysql and then relaunch services to check whether this change is working well.

Roger that !! 🐱‍🏍🐱‍🏍