Remove flare flickering (#15787)

It's soooooo annoying.

Resources/Prototypes/Entities/Objects/Tools/flare.yml

@@ -1,5 +1,5 @@
 - type: entity
-  name: emergency flare # todo: we need some sort of IgnitionSourceComponent we can add to this, so when it's lit it will cause fires when touching fuel
+  name: emergency flare
   parent: BaseItem
   id: Flare
   description: A flare that produces a very bright light for a short while. Point the flame away from yourself.
@@ -50,15 +50,6 @@
     temperature: 1000
   - type: LightBehaviour
     behaviours:
-      - !type:RandomizeBehaviour # immediately make it bright and flickery
-        id: turn_on
-        interpolate: Nearest
-        minDuration: 0.001
-        maxDuration: 0.001
-        startValue: 6.0
-        endValue: 15.0
-        property: Energy
-        isLooped: true
       - !type:FadeBehaviour # have the radius start small and get larger as it starts to burn
         id: turn_on
         interpolate: Linear