Fix bad comment in class_linker

Change-Id: Ic8c90e9d880c5aae7e7bdb6c2a0c854fdaa5c357
diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index 2c11f8b..db8cbd4 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -833,8 +833,6 @@
       // There's no point in going forward and eventually try to regenerate the
       // file if we couldn't remove the obsolete one. Mostly likely we will fail
       // with the same error when trying to write the new file.
-      // In case the clean up failure is due to permission issues it's *mandatory*
-      // to stop to avoid regenerating under the wrong user.
       // TODO: should we maybe do this only when we get permission issues? (i.e. EACCESS).
       if (obsolete_file_cleanup_failed) {
         return false;