Fetch editors/vim distfile from github

[feld]

Summary

Reduce number of distfiles for editors/vim to one (1) by fetching from
github.

This is left at the same patchlevel (712) to allow merging to quarterly
branch to ease the pain there as well.

Test Plan

Build with poudriere testport both editors/vim and editors/vim-lite

[feld]

remove vim from bsd.sites.mk
remove unused if statement from post-patch

[bdrewery]

editors/vim/Makefile

33

It defaults to PORTNAME

36

Instead of these 4 lines just use WRKSRC_SUBDIR=src, no need to modify WRKSRC either.

[feld]

No need to define WRKSRC
Github project/author values derived from PORTNAME

editors/vim/Makefile

36

WRKSRC_SUBDIR appears to create a lot of casualties:

• patches in files/ need to be adjusted
• lots of ${WRKSRC}/src below need to be changed
• ${WRKSRC}/runtime below won't work; need to hack something like ${WRKSRC%/${WRKSRC_SUBDIR}}/runtime

Is this worth it?

[feld]

editors/vim/Makefile

36

WRKSRC doesn't even need to be defined.

[sunpoet]

Committed. Thanks!

[feld]

This was committed a while back.