Remove "Project ID" from Releeph Projects

Summary:
Fixes T3660. Releeph Projects currently have an unused one-to-one mapping to Phabricator projects. This isn't consistent with other applications and has no integrations or uses. Get rid of it.

NOTE: Waiting for signoff from @legneato on T3660 before pulling the trigger here.

Test Plan: Created and edited Releeph projects. Grepped for references to project ID; there are a dozen or so but they're all either Releeph projects or Arcanist projects.

Reviewers: btrahan

Reviewed By: btrahan

CC: LegNeato, aran

Maniphest Tasks: T3660

Differential Revision: https://secure.phabricator.com/D6635

resources/sql/patches/20130731.releephproject.sql

···
+ALTER TABLE {$NAMESPACE}_releeph.releeph_project
+  DROP projectID;

src/applications/releeph/controller/project/ReleephProjectEditController.php

···
     $project_name = $request->getStr('name',
       $this->getReleephProject()->getName());
 
-    $phabricator_project_id = $request->getInt('projectID',
-      $this->getReleephProject()->getProjectID());
     $trunk_branch = $request->getStr('trunkBranch',
       $this->getReleephProject()->getTrunkBranch());
     $branch_template = $request->getStr('branchTemplate');
···
       }
 
       $project = $this->getReleephProject()
-        ->setProjectID($phabricator_project_id)
         ->setTrunkBranch($trunk_branch)
         ->setDetail('pushers', $pusher_phids)
         ->setDetail('pick_failure_instructions', $pick_failure_instructions)
···
           ->setLabel(pht('Releeph Project PHID'))
           ->setValue(
               $this->getReleephProject()->getPHID()))
-      ->appendChild(
-        id(new AphrontFormSelectControl())
-          ->setLabel(pht('Phabricator Project'))
-          ->setValue($phabricator_project_id)
-          ->setName('projectID')
-          ->setOptions($projects))
       ->appendChild(
         id(new AphrontFormTextControl())
           ->setLabel(pht('Trunk'))

src/applications/releeph/storage/ReleephProject.php

···
   protected $isActive;
   protected $createdByUserPHID;
   protected $arcanistProjectID;
-  protected $projectID;
 
   protected $details = array();
 
···
     if (!$this->getDetail('releaseCounter')) {
       $this->setDetail('releaseCounter', 0);
     }
-  }
-
-  public function loadPhabricatorProject() {
-    if ($id = $this->getProjectID()) {
-      return id(new PhabricatorProject())->load($id);
-    }
-    return id(new PhabricatorProject())->makeEphemeral(); // dummy
   }
 
   public function loadArcanistProject() {

src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php

···
         'type' => 'sql',
         'name' => $this->getPatchPath('20130731.releephrepoid.sql'),
       ),
+      '20130731.releephproject.sql' => array(
+        'type' => 'sql',
+        'name' => $this->getPatchPath('20130731.releephproject.sql'),
+      ),
     );
   }
 }