Remove magic "help" in global search

Summary: Fixes T7425. Overall, this is surprising and confusing after jump nav was merged with global search.

Test Plan: Searched for "help", got documents matching the word "help".

Reviewers: chad, btrahan

Reviewed By: btrahan

Subscribers: chasemp, epriestley

Maniphest Tasks: T7425

Differential Revision: https://secure.phabricator.com/D11936

src/applications/search/engine/PhabricatorJumpNavHandler.php

@@ -4,10 +4,8 @@ final class PhabricatorJumpNavHandler {
 
   public static function getJumpResponse(PhabricatorUser $viewer, $jump) {
     $jump = trim($jump);
-    $help_href = PhabricatorEnv::getDocLink('Jump Nav User Guide');
 
     $patterns = array(
-      '/^help/i'                  => 'exturi:'.$help_href,
       '/^a$/i' => 'uri:/audit/',
       '/^f$/i' => 'uri:/feed/',
       '/^d$/i' => 'uri:/differential/',
@@ -18,7 +16,7 @@ final class PhabricatorJumpNavHandler {
       '/^p\s+(.+)$/i' => 'project',
       '/^u\s+(\S+)$/i' => 'user',
       '/^task:\s*(.+)/i' => 'create-task',
-      '/^(?:s|symbol)\s+(\S+)/i'  => 'find-symbol',
+      '/^(?:s)\s+(\S+)/i' => 'find-symbol',
       '/^r\s+(.+)$/i' => 'find-repository',
     );
 
@@ -28,10 +26,6 @@ final class PhabricatorJumpNavHandler {
         if (!strncmp($effect, 'uri:', 4)) {
           return id(new AphrontRedirectResponse())
             ->setURI(substr($effect, 4));
-        } else if (!strncmp($effect, 'exturi:', 7)) {
-          return id(new AphrontRedirectResponse())
-            ->setURI(substr($effect, 7))
-            ->setIsExternal(true);
         } else {
           switch ($effect) {
             case 'user':

src/docs/user/userguide/jump.diviner

@@ -10,7 +10,6 @@ a navigational command into the box and press return.
 
 = Supported Commands =
 
-  - **help** - Jump to this document.
   - **T** - Jump to Maniphest.
   - **T123** - Jump to Maniphest Task 123.
   - **D** - Jump to Differential.