Remove usage of update_all_types (#16406)

Previously when patching types we would provide update_all_types to update all fields with the same name in the index. This setting has been deprecated in 7.0 and no longer necessary since we only use a single type (doc).

Signed-off-by: Tyler Smalley <[email protected]>

Author: tylersmalley

src/core_plugins/elasticsearch/lib/patch_kibana_index.js

@@ -51,8 +51,7 @@ export async function patchKibanaIndex(options) {
     type: rootEsType,
     body: {
       properties: missingProperties
-    },
-    update_all_types: true
+    }
   });
 }