Temporarily disable percolator

With this commit temporarily disable percolator for our nightly
benchmarking runs due to
elastic#24317 which gives us time
to fix the track properly.

Relates elastic#24317

Author: danielmitterdorfer

night_rally.py

@@ -25,9 +25,10 @@
     ["append-no-conflicts-index-only", "verbose_iw"]
 ]
 
-tracks["percolator"] = [
-    ["append-no-conflicts", "4gheap"]
-]
+# temporarily disabled due to https://github.com/elastic/elasticsearch/pull/24317
+# tracks["percolator"] = [
+#     ["append-no-conflicts", "4gheap"]
+# ]
 
 tracks["geopoint"] = [
     ["append-no-conflicts", "defaults"],