remove comment for won't fix todo

Scripts/MaterialScreenshotTests.bv.lua

@@ -67,8 +67,7 @@ function GenerateMaterialScreenshot(imageComparisonThresholdLevel, materialName,
     ArcBallCameraController_SetDistance(options.cameraDistance)
     ArcBallCameraController_SetPan(Vector3(0.0, 0.0, options.cameraZ))
     
-    -- Give some extra frames for the textures to finish streaming in. 
-    -- [GFX TODO] Hopefully at some point we can make this deterministic
+    -- Give some extra frames for the textures to finish streaming in.
     IdleFrames(10) 
 
     options.screenshotFilename = string.lower(options.screenshotFilename)