envoy_build_system: remove unnecessary return statement (#6898)
envoy_build_system: remove unnecessary return statement (#6898)

Signed-off-by: Frank Fort <fdfbceb5ed4073410ce08fbd0f7c033bb477f889@google.com>
envoyproxy/envoy,envoyproxy/envoy-wasm,lyft/envoy,envoyproxy/envoy-wasm,istio/envoy,lyft/envoy,istio/envoy,istio/envoy,lizan/envoy,envoyproxy/envoy,lizan/envoy,eklitzke/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,jrajahalme/envoy,jrajahalme/envoy,istio/envoy,envoyproxy/envoy,lyft/envoy,jrajahalme/envoy,istio/envoy,lyft/envoy,eklitzke/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,istio/envoy,envoyproxy/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,eklitzke/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lizan/envoy,eklitzke/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,lizan/envoy,lizan/envoy,istio/envoy,jrajahalme/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,lizan/envoy,envoyproxy/envoy,eklitzke/envoy