Removing self go-install.md self reference.

[JoshuaCooper]

Melange Pull Request Template

Functional Changes

• This change can build all of Wolfi without errors (describe results in notes)

Notes:
No changes to melange code, just documentation.

SCA Changes

• Examining several representative APKs show no regression / the desired effect (details in notes)

Notes:
No changes to melange code, just documentation.

Linter

• The new check is clean across Wolfi
• The new check is opt-in or a warning

Notes:
No changes to melange code, just documentation.