Removing third-party link (#1546)

Removing the third-party link. Google is good for finding references or other discussion outside the maintainer's architectural presentations and discussion and directly related projects such as Grafana.

README.md

@@ -75,7 +75,6 @@ Your feedback is always welcome.
 - The original [design doc](https://docs.google.com/document/d/11tjK_lvp1-SVsFZjgOTr1vV3-q6vBAsZYIQ5ZeYBkyM/view) for Loki is a good source for discussion of the motivation and design decisions.
 - Callum Styan's March 2019 DevOpsDays Vancouver talk "[Grafana Loki: Log Aggregation for Incident Investigations][devopsdays19-talk]".
 - Grafana Labs blog post "[How We Designed Loki to Work Easily Both as Microservices and as Monoliths][architecture-blog]".
-- Julien Garcia Gonzalez' March 2019 blog post "[Grafana Logging using Loki][giant-swarm-blog]".
 - Tom Wilkie's early-2019 CNCF Paris/FOSDEM talk "[Grafana Loki: like Prometheus, but for logs][fosdem19-talk]" ([slides][fosdem19-slides], [video][fosdem19-video]).
 - David Kaltschmidt's KubeCon 2018 talk "[On the OSS Path to Full Observability with Grafana][kccna18-event]" ([slides][kccna18-slides], [video][kccna18-video]) on how Loki fits into a cloud-native environment.
 - Goutham Veeramachaneni's blog post "[Loki: Prometheus-inspired, open source logging for cloud natives](https://grafana.com/blog/2018/12/12/loki-prometheus-inspired-open-source-logging-for-cloud-natives/)" on details of the Loki architecture.
@@ -83,7 +82,6 @@ Your feedback is always welcome.
 
 [devopsdays19-talk]: https://grafana.com/blog/2019/05/06/how-loki-correlates-metrics-and-logs-and-saves-you-money/
 [architecture-blog]: https://grafana.com/blog/2019/04/15/how-we-designed-loki-to-work-easily-both-as-microservices-and-as-monoliths/
-[giant-swarm-blog]: https://blog.giantswarm.io/grafana-logging-using-loki
 [fosdem19-talk]: https://fosdem.org/2019/schedule/event/loki_prometheus_for_logs/
 [fosdem19-slides]: https://speakerdeck.com/grafana/grafana-loki-like-prometheus-but-for-logs
 [fosdem19-video]: https://mirror.as35701.net/video.fosdem.org/2019/UB2.252A/loki_prometheus_for_logs.mp4