THoT:10: Use SCREEN_FADE rather than FADE_TO_BLACK

Also tweaked the timing to make it more dramatic, and removed the
now-unnecessary commands hiding units and removing items.

data/campaigns/The_Hammer_of_Thursagan/scenarios/10_Epilogue.cfg

@@ -200,14 +200,11 @@
             message= _ "Pelias, my thanks to the Lord Protector; I will attend him in the spring. But it seems that I have some work to do here first."
         [/message]
 
-        [hide_unit][/hide_unit]
+        {SCREEN_FADE 0 0 0 1000}
 
-        [remove_item]
-            x=18,12,12
-            y=11,10,12
-        [/remove_item]
-
-        {FADE_TO_BLACK_HOLD 500}
+        [delay]
+            time=2000
+        [/delay]
 
         [unlock_view][/unlock_view]