clean up points code

Author: myk002

points.lua

@@ -1,20 +1,7 @@
--- Set available points at the embark screen
--- http://www.bay12forums.com/smf/index.php?topic=135506.msg4925005#msg4925005
---[====[
-
-points
-======
-Sets available points at the embark screen to the specified number.  Eg.
-``points 1000000`` would allow you to buy everything, or ``points 0`` would
-make life quite difficult.
-
-]====]
-
 if dfhack.isWorldLoaded() then
     df.global.world.worldgen.worldgen_parms.embark_points = tonumber(...)
-    local scr = dfhack.gui.getCurViewscreen()
+    local scr = dfhack.gui.getDFViewscreen()
     if df.viewscreen_setupdwarfgamest:is_instance(scr) then
-        local scr = scr --as:df.viewscreen_setupdwarfgamest
         scr.points_remaining = tonumber(...)
     end
 else