Oilpan: finalization of Permissions and SyncManager not needed.

Source/modules/permissions/Permissions.cpp

Index: Source/modules/permissions/Permissions.cpp
diff --git a/Source/modules/permissions/Permissions.cpp b/Source/modules/permissions/Permissions.cpp
index f56d32be75ad1afb3c4cfb7379374a33b1712f01..17160526a4212012e7cf66738de554b1c32ff637 100644
--- a/Source/modules/permissions/Permissions.cpp
+++ b/Source/modules/permissions/Permissions.cpp
@@ -33,10 +33,6 @@ WebPermissionClient* permissionClient(ExecutionContext* executionContext)
 
 } // anonymous namespace
 
-Permissions::~Permissions()
-{
-}
-
 ScriptPromise Permissions::query(ScriptState* scriptState, const AtomicString& permissionName)
 {
     WebPermissionClient* client = permissionClient(scriptState->executionContext());
@@ -68,8 +64,4 @@ ScriptPromise Permissions::query(ScriptState* scriptState, const AtomicString& p
     return promise;
 }
 
-DEFINE_TRACE(Permissions)
-{
-}
-
 } // namespace blink