Merge branch 'cherry-pick-dfcb56ce [formerly 1f80221ce2]-21.9' into '21.9'

Sweeping !16591 from 21.3 to 21.9.
add a sequenceFlavour "noFTFxAODCnv" to suppress running of the FastTrackFinder…

See merge request atlas/athena!16775

Former-commit-id: 13cbf41c7eda7cea29a648fc285d414f86a701cf

Trigger/TrigTools/TrigInDetConf/python/TrigInDetFTKSequence.py

@@ -70,12 +70,13 @@ class TrigInDetFTKSequence(TrigInDetSequence):
       fullseq.append(algos)
       algos = list()
 
+    if "noFTFxAODCnv" not in sequenceFlavour:
+      algos += [("TrigFastTrackFinder",ftfname),
+                ("InDetTrigTrackingxAODCnv",cnvname),
+      ]
 
-    algos += [("TrigFastTrackFinder",ftfname),
-              ("InDetTrigTrackingxAODCnv",cnvname),
-              ]
-    fullseq.append(algos)
-
+    if len(algos):
+      fullseq.append(algos)
 
     if "PT" in sequenceFlavour:
       algos = list()