Remove unnecessary semicolons after namespaces

Summary:
See title.

No code / business logic changes.

Reviewed By: vijay609

Differential Revision: D69375646

fbshipit-source-id: e0cd266a5c86723c16e425084174ffcb1339e6ea

src/data_provider/AriaVrsDataProvider.cpp

@@ -80,7 +80,7 @@ auto kWifiBeaconCallback =
 
 const int kAriaNativeRgbResolution = 2880;
 const int kAriaNativeEtResolution = 640;
-}; // namespace
+} // namespace
 
 namespace ark {
 namespace datatools {