fishnet: Removal as rewriten in Rust and require a new package

[th0ma7]

Description

Removal of fishnet package and dependency as it will require a totally new package since code was migrated to rust #5043 (comment)

Fixes #5043

Checklist

• Build rule all-supported completed successfully
• New installation of package completed successfully
• Package upgrade completed successfully (Manually install the package again)
• Package functionality was tested
• Any needed documentation is updated/created

Type of change

• Bug fix
• New Package
• Package update
• Includes small framework changes
• This change requires a documentation update (e.g. Wiki)

[th0ma7]

@mayweed are you good with its removal? Until a newer rust package gets created (if ever)?

[hgy59]

I prefere not to remove packages for such a reason.
If the build fails, you could declare the package BROKEN and add respective information to the BROKEN file.
Otherwise it would be difficult to migrate to the rust version as former implementation is not visible anymore.

[th0ma7]

@hgy59 I've looked at the current setup and if I get this right it is not even usable as it stands. This is even worst than broken.

A totally new package is needed to replace this one. In the meantime this is useless obsolete code for my standpoint.

[Safihre]

I agree, let's remove this dead code.

[mayweed]

@th0ma7 i think it’s better to remove that dead code, hope someone will find the time to write a mk for the new fishnet!
Thx