Revert "remove unnecessary functions"

This reverts commit ba155f5.

gov/governance/fn_registry.gno

@@ -148,5 +148,16 @@ func createParameterHandlers() *ParameterRegistry {
 		return nil
 	})
 
+	registry.Register(consts.STAKER_PATH, "SetWarmUp", func(params []string) error {
+		if err := hasDesiredParams(params, 2); err != nil {
+			return err
+		}
+		sr.SetWarmUp(
+			int64(parseInt(params[0])), // percent
+			int64(parseInt(params[1])), // block
+		)
+		return nil
+	})
+
 	return registry
 }

staker/manage_pool_tiers.gno

@@ -303,6 +303,24 @@ func RemovePoolTierByAdmin(poolPath string) {
 	)
 }
 
+func RemovePoolTier(poolPath string) {
+	caller := std.PrevRealm().Addr()
+	if err := common.GovernanceOnly(caller); err != nil {
+		panic(err)
+	}
+
+	removePoolTier(poolPath)
+
+	prevAddr, prevRealm := getPrev()
+
+	std.Emit(
+		"RemovePoolTier",
+		"prevAddr", prevAddr,
+		"prevRealm", prevRealm,
+		"poolPath", poolPath,
+	)
+}
+
 // removePoolTier removes the pool from poolTiers
 //
 // Parameters: