Fix comment on removeOfflineLicense

bug:117570956
Change-Id: Iad1a15d81066d01387ec9addd420040155216a75
diff --git a/drm/1.2/IDrmPlugin.hal b/drm/1.2/IDrmPlugin.hal
index 3c21815..7d266f4 100644
--- a/drm/1.2/IDrmPlugin.hal
+++ b/drm/1.2/IDrmPlugin.hal
@@ -74,7 +74,7 @@
      * @return status the status of the call. Must be one of OK on
      *     success, BAD_VALUE if the license is not found or
      *     ERROR_DRM_INVALID_STATE if the HAL is in a state where the
-     *     KeySetIds can't be returned.
+     *     KeySetIds can't be removed.
      */
     removeOfflineLicense(KeySetId keySetId) generates (@1.0::Status status);