diff --git a/app/extensions/resources/classes/extension.php b/app/extensions/resources/classes/extension.php
index 25f99b7224..3e302a6b74 100644
--- a/app/extensions/resources/classes/extension.php
+++ b/app/extensions/resources/classes/extension.php
@@ -518,18 +518,6 @@ if (!class_exists('extension')) {
 					$_SESSION["reload_xml"] = true;
 			}
 		}
-
-		// returns true if the domain extension already exists
-		public function exists($domain_uuid, $extension) {
-			$sql = "select * from v_extensions where domain_uuid = '".$domain_uuid."' ";
-			$sql .= "and extension='".$extension."'";
-			
-			$prep_statement = $this->db->prepare(check_sql($sql));
-			$prep_statement->execute();
-			$result = $prep_statement->fetchAll(PDO::FETCH_NAMED);
-			
-			return count($result) != 0;
-		}
 	}
 }