Remove the old Iceberg quickstart (#146)

Removes the old Iceberg quickstart and updates its README to point to
the quickstart (bufstream-demo). It doesn't use expanded schema
providers (local schemas).

Author: jrinehart-buf

Makefile

@@ -47,16 +47,12 @@ license-header: $(BIN)/license-header
 ################################################################################
 
 .PHONY: ci
-ci: ci-bsr ci-bufstream ci-protovalidate \
+ci: ci-bsr ci-protovalidate \
 
 .PHONY: ci-bsr
 ci-bsr:
 	cd bsr && $(MAKE)
 
-.PHONY: ci-bufstream
-ci-bufstream:
-	cd bufstream/iceberg-quickstart && $(MAKE)
-
 .PHONY: ci-protovalidate
 ci-protovalidate:
 	cd protovalidate && $(MAKE)

bufstream/iceberg-quickstart/.gitignore

@@ -2,15 +2,8 @@
 
 # Bufstream and Iceberg quickstart
 
-This directory contains example code for Bufstream's [Iceberg quickstart][docs].
-It walks through the key tasks for creating a local Bufstream and Iceberg environment:
+This example has been consolidated into the [Bufstream quickstart][quickstart]. 
+Its code is in the [bufstream-demo][repo] repository.
 
-1. Deploying a Docker-based Bufstream environment with local object storage and Iceberg REST catalog.
-2. Configuring Bufstream and a topic for Iceberg archival.
-3. Running the Iceberg archival process on demand.
-4. Querying Iceberg with Apache Spark and a Jupyter Notebook.
-
-Note that the MinIO image within this Docker Compose project is provided by [lithus](https://github.com/golithus/minio-builds). [MinIO ceased publishing public Docker images](https://github.com/minio/minio/issues/21647) in October 2025.
-
-
-[docs]: https://buf.build/docs/bufstream/iceberg/quickstart/
+[quickstart]: https://buf.build/docs/bufstream/quickstart/
+[repo]: https://github.com/bufbuild/bufstream-demo