sourcehut: remove bugstemplate

Currently, using https://git.sr.ht/~user/repo in `npm init` results in
the package.json file having a `bugs` URL of
https://todo.sr.ht/~user/repo. However, this is not how SourceHut works.
An issue tracker need not exist at that URL, and often projects have
issue trackers that are named differently from the repository.
Therefore, no information can be inferred about the issue tracker from
the git URL.

lib/hosts.js

@@ -199,8 +199,7 @@ hosts.sourcehut = {
     `https://${domain}/${user}/${project}.git${maybeJoin('#', committish)}`,
   tarballtemplate: ({ domain, user, project, committish }) =>
     `https://${domain}/${user}/${project}/archive/${maybeEncode(committish) || 'HEAD'}.tar.gz`,
-  bugstemplate: ({ user, project }) =>
-    `https://todo.sr.ht/${user}/${project}`,
+  bugstemplate: ({ user, project }) => null,
   extract: (url) => {
     let [, user, project, aux] = url.pathname.split('/', 4)
 

test/sourcehut.js

@@ -106,7 +106,7 @@ t.test('string methods populate correctly', t => {
   t.equal(parsed.tarball(), 'https://git.sr.ht/~foo/bar/archive/HEAD.tar.gz')
   t.equal(parsed.file(), 'https://git.sr.ht/~foo/bar/blob/HEAD/')
   t.equal(parsed.file('/lib/index.js'), 'https://git.sr.ht/~foo/bar/blob/HEAD/lib/index.js')
-  t.equal(parsed.bugs(), 'https://todo.sr.ht/~foo/bar')
+  t.equal(parsed.bugs(), null)
 
   t.equal(
     parsed.docs({ committish: 'fix/bug' }),