Remove Split Response Processor from 2.16 Search Pipeline docs (#8078)

Signed-off-by: Daniel Widdis <[email protected]>

_search-plugins/search-pipelines/search-processors.md

@@ -45,7 +45,6 @@ Processor | Description | Earliest available version
 [`rerank`]({{site.url}}{{site.baseurl}}/search-plugins/search-pipelines/rerank-processor/)| Reranks search results using a cross-encoder model. | 2.12
 [`retrieval_augmented_generation`]({{site.url}}{{site.baseurl}}/search-plugins/search-pipelines/rag-processor/) | Used for retrieval-augmented generation (RAG) in [conversational search]({{site.url}}{{site.baseurl}}/search-plugins/conversational-search/). | 2.10 (generally available in 2.12)
 [`sort`]({{site.url}}{{site.baseurl}}/search-plugins/search-pipelines/sort-processor/)| Sorts an array of items in either ascending or descending order. | 2.16
-[`split`]({{site.url}}{{site.baseurl}}/search-plugins/search-pipelines/split-processor/)| Splits a string field into an array of substrings based on a specified delimiter. | 2.16
 [`truncate_hits`]({{site.url}}{{site.baseurl}}/search-plugins/search-pipelines/truncate-hits-processor/)| Discards search hits after a specified target count is reached. Can undo the effect of the `oversample` request processor.  | 2.12