macfuse: add fs_link variant, delete more unwanted files

[i0ntempest]

Description

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS x.y
Xcode x.y / Command Line Tools x.y.z

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@ra1nb0w for port macfuse.
@mohd-akram for port macfuse.

[i0ntempest]

I can also put this into a variant if we don't want to violate mtree by default.

[mohd-akram]

A user might have installed macFUSE from their website. We don't want to mess with that. It's this way on purpose.

[mohd-akram]

I can also put this into a variant if we don't want to violate mtree by default.

This step needs to only be done once and never again. I don't think we need a variant for it.

[i0ntempest]

I can also put this into a variant if we don't want to violate mtree by default.

This step needs to only be done once and never again. I don't think we need a variant for it.

All files being handled my MacPorts would eliminate the possibility of a broken symlink if the user removes the port. Also better user experience.
Just my 2 cent tho, I'm not going to force it if you think it's really unnecessary.