[Extensions] Remove the "use_movable_types" entry from idl/json files

chrome/common/extensions/api/system_indicator.idl

Index: chrome/common/extensions/api/system_indicator.idl
diff --git a/chrome/common/extensions/api/system_indicator.idl b/chrome/common/extensions/api/system_indicator.idl
index e7743466a6863c39f27724dbc9e96d4fcbfc8ba6..c24f8142efccd35cc051c99335244291b7c1878c 100644
--- a/chrome/common/extensions/api/system_indicator.idl
+++ b/chrome/common/extensions/api/system_indicator.idl
@@ -6,7 +6,7 @@
 // menubar, system tray, or other visible area provided by the OS.
 // This is modelled after the other extension action APIs, such as
 // chrome.browserAction and chrome.pageAction.
-[use_movable_types=true] namespace systemIndicator {
+namespace systemIndicator {
   dictionary SetIconDetails {
     any? path;
     any? imageData;