Remove 'initFromConduit' option from Diffusion

Summary:
Ref T2783. I think this served two purposes:

  - Improving performance in cases where we "know" a repository is local.
  - Preventing loops.

It is now obsolete:

  - After D11476, refs can almost always resolve on a fast path.
  - As T2783 moves forward, we can usually no longer know when a repository is local without actually looking it up -- almost everything is allowed to run anywhere.
  - The cluster behavior in D11475 now prevents loops.

Test Plan: `grep`, browsed around. This didn't really do much of anything anymore.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T2783

Differential Revision: https://secure.phabricator.com/D11477

src/applications/diffusion/DiffusionLintSaveRunner.php

@@ -236,7 +236,6 @@ final class DiffusionLintSaveRunner {
     foreach ($this->blame as $path => $lines) {
       $drequest = DiffusionRequest::newFromDictionary(array(
         'user' => PhabricatorUser::getOmnipotentUser(),
-        'initFromConduit' => false,
         'repository' => $repository,
         'branch' => $this->branch->getName(),
         'path' => $path,

src/applications/diffusion/conduit/DiffusionQueryConduitAPIMethod.php

@@ -102,7 +102,6 @@ abstract class DiffusionQueryConduitAPIMethod
         'branch' => $request->getValue('branch'),
         'path' => $request->getValue('path'),
         'commit' => $request->getValue('commit'),
-        'initFromConduit' => false,
       ));
 
     // Figure out whether we're going to handle this request on this device,

src/applications/diffusion/request/DiffusionRequest.php

@@ -215,10 +215,6 @@ abstract class DiffusionRequest {
     $this->didInitialize();
   }
 
-  final protected function shouldInitFromConduit() {
-    return $this->initFromConduit;
-  }
-
   final public function setUser(PhabricatorUser $user) {
     $this->user = $user;
     return $this;
@@ -767,7 +763,6 @@ abstract class DiffusionRequest {
     // If we couldn't pull everything out of the cache, execute the underlying
     // VCS operation.
     if ($refs) {
-      if ($this->shouldInitFromConduit()) {
       $vcs_results = DiffusionQuery::callConduitWithDiffusionRequest(
         $this->getUser(),
         $this,
@@ -775,12 +770,6 @@ abstract class DiffusionRequest {
         array(
           'refs' => $refs,
         ));
-      } else {
-        $vcs_results = id(new DiffusionLowLevelResolveRefsQuery())
-          ->setRepository($this->getRepository())
-          ->withRefs($refs)
-          ->execute();
-      }
     } else {
       $vcs_results = array();
     }

src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php

@@ -100,7 +100,6 @@ final class PhabricatorRepositoryCommitHeraldWorker
     $drequest = DiffusionRequest::newFromDictionary(
       array(
         'user' => PhabricatorUser::getOmnipotentUser(),
-        'initFromConduit' => false,
         'repository' => $repository,
         'commit' => $commit->getCommitIdentifier(),
       ));

src/applications/repository/worker/commitchangeparser/PhabricatorOwnersPackagePathValidator.php

@@ -87,7 +87,6 @@ final class PhabricatorOwnersPackagePathValidator {
       id(new PhabricatorRepository())->load($commit->getRepositoryID());
     $data = array(
       'user' => PhabricatorUser::getOmnipotentUser(),
-      'initFromConduit' => false,
       'repository' => $repository,
       'commit' => $commit->getCommitIdentifier(),
     );

src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryCommitMessageParserWorker.php

@@ -375,7 +375,6 @@ abstract class PhabricatorRepositoryCommitMessageParserWorker
         }
         $drequest = DiffusionRequest::newFromDictionary(array(
           'user' => PhabricatorUser::getOmnipotentUser(),
-          'initFromConduit' => false,
           'repository' => $this->repository,
           'commit' => $this->commit->getCommitIdentifier(),
           'path' => $path,