[8.x][DOCS] Pulls out EIS-related docs.

Author: szabosteve

docs/reference/inference/elastic-infer-service.asciidoc

@@ -136,7 +136,6 @@ include::chat-completion-inference.asciidoc[]
 include::put-inference.asciidoc[]
 include::stream-inference.asciidoc[]
 include::update-inference.asciidoc[]
-include::elastic-infer-service.asciidoc[]
 include::service-alibabacloud-ai-search.asciidoc[]
 include::service-amazon-bedrock.asciidoc[]
 include::service-anthropic.asciidoc[]