build: Copy merged OpenAPI spec from server sources

Signed-off-by: provokateurin <[email protected]>

Author: provokateurin

.gitmodules

@@ -30,12 +30,7 @@ get-server-sources:
 	cd build && sh get-server-sources.sh $(DRONE_BRANCH)
 
 openapi-spec: get-server-sources
-	git submodule update --init
-	cd build/openapi-extractor && composer install
-	cd build && ./openapi-extractor/merge-specs \
-		--core server/core/openapi.json \
-		--merged ../developer_manual/_static/openapi.json \
-		$$(ls server/apps/*/openapi.json)
+	cp build/server/openapi.json developer_manual/_static/openapi.json
 	cd developer_manual/_static && \
 		wget https://unpkg.com/@stoplight/[email protected]/web-components.min.js -O stoplight-elements.js && \
 		wget https://unpkg.com/@stoplight/[email protected]/styles.min.css -O stoplight-elements.css