Remove unused Conpherence sprites

Summary: These were refactored out a while ago

Test Plan: Grep codebase, use Conpherence on desktop, mobile.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11023

src/applications/celerity/CeleritySpriteGenerator.php

@@ -148,51 +148,6 @@ final class CeleritySpriteGenerator {
     return $sheet;
   }
 
-
-  public function buildConpherenceSheet() {
-    $name = 'conpherence';
-    $icons = $this->getDirectoryList($name.'_1x');
-    $scales = array(
-      '1x' => 1,
-      '2x' => 2,
-    );
-    $template = id(new PhutilSprite())
-      ->setSourceSize(32, 32);
-
-    $sprites = array();
-    foreach ($icons as $icon) {
-      $color = preg_match('/_on/', $icon) ? 'on' : 'off';
-
-      $prefix = $name.'_';
-
-      $sprite = id(clone $template)
-        ->setName($prefix.$icon);
-
-      $tcss = array();
-      $tcss[] = '.'.$prefix.$icon;
-      if ($color == 'on') {
-        $class = str_replace('_on', '_off', $prefix.$icon);
-        $tcss[] = '.device-desktop .'.$class.':hover ';
-      }
-
-      $sprite->setTargetCSS(implode(', ', $tcss));
-
-      foreach ($scales as $scale_key => $scale) {
-        $path = $this->getPath($prefix.$scale_key.'/'.$icon.'.png');
-        $sprite->setSourceFile($path, $scale);
-      }
-      $sprites[] = $sprite;
-    }
-
-    $sheet = $this->buildSheet($name, true);
-    $sheet->setScales($scales);
-    foreach ($sprites as $sprite) {
-      $sheet->addSprite($sprite);
-    }
-
-    return $sheet;
-  }
-
   public function buildDocsSheet() {
     $icons = $this->getDirectoryList('docs_1x');
     $scales = array(