[REST-TEST] forgot to add this file.

Original commit: elastic/x-pack-elasticsearch@23de354192

rest-api-spec/api/indices.delete.json

@@ -0,0 +1,28 @@
+{
+  "indices.delete": {
+    "documentation": "This file is copied from es core just to verify that the .watches api hijacking works",
+    "methods": ["DELETE"],
+    "url": {
+      "path": "/{index}",
+      "paths": ["/{index}"],
+      "parts": {
+        "index": {
+          "type" : "list",
+          "required" : true,
+          "description" : "A comma-separated list of indices to delete; use `_all` or `*` string to delete all indices"
+        }
+      },
+      "params": {
+        "timeout": {
+          "type" : "time",
+          "description" : "Explicit operation timeout"
+        },
+        "master_timeout": {
+          "type" : "time",
+          "description" : "Specify timeout for connection to master"
+        }
+      }
+    },
+    "body": null
+  }
+}