Remove obsolete function (already provided by getidbyname)

includes/functions.php

@@ -941,25 +941,4 @@ function validate_device_id($id)
   return($return);
 }
 
-function get_device_id($hostname)
-{
-  global $config;
-  if(empty($hostname))
-  {
-    $return = false;
-  }
-  else
-  {
-    $device_id = dbFetchCell("SELECT `device_id` FROM `devices` WHERE `hostname` = ?", array($hostname));
-    if(empty($device_id))
-    {
-      $return = false;
-    }
-    else
-    {
-      $return = $device_id;
-    }
-  }
-  return $return;
-}
 ?>