Drop dockerized proto build

Not needed anymore as we install protoc locally in the source tree.

Signed-off-by: Markus Lehtonen <[email protected]>

Author: marquiz

Makefile

@@ -85,13 +85,6 @@ build-proto: check-protoc install-ttrpc-plugin install-wasm-plugin install-proto
 	done
 	sed -i '1s;^;//go:build !wasip1\n\n;' pkg/api/api_ttrpc.pb.go
 
-.PHONY: build-proto-dockerized
-build-proto-dockerized:
-	$(Q)docker build --build-arg ARTIFACTS="$(dir $(PROTO_SOURCES))" --target final \
-		--output type=local,dest=$(RESOLVED_PWD) \
-		-f hack/Dockerfile.buildproto .
-	$(Q)tar xf artifacts.tgz && rm -f artifacts.tgz
-
 build-plugins: $(PLUGINS)
 
 build-check: