Update reference.yml

Author: dend

docs-ref-mapping/reference.yml

@@ -86,7 +86,6 @@
         - azure-cognitiveservices-entitysearch
         - azure-cognitiveservices-face
         - azure-cognitiveservices-imagesearch
-        - azure-cognitiveservices-language
         - azure-cognitiveservices-newssearch
         - azure-cognitiveservices-search
         - azure-cognitiveservices-spellcheck