[MM-41408] Remove autotour feature flag (#19495)

model/feature_flags.go

@@ -47,9 +47,6 @@ type FeatureFlags struct {
 	// Enable Calls plugin support in the mobile app
 	CallsMobile bool
 
-	// Start A/B tour tips automatically, possible values = ("none", "auto")
-	AutoTour string
-
 	// A dash separated list for feature flags to turn on for Boards
 	BoardsFeatureFlags string
 
@@ -88,7 +85,6 @@ func (f *FeatureFlags) SetDefaults() {
 	f.GlobalHeader = true
 	f.NewAccountNoisy = false
 	f.CallsMobile = false
-	f.AutoTour = "none"
 	f.BoardsFeatureFlags = ""
 	f.AddMembersToChannel = "top"
 	f.GuidedChannelCreation = false