SotA: Clear variables when no longer needed

[ci skip]

data/campaigns/Secrets_of_the_Ancients/scenarios/16_The_Mage.cfg

@@ -500,7 +500,7 @@ We crossed the high plateaus, and forded the Arkan-thoria. Then we headed up int
         [redraw][/redraw]
 
         [clear_variable]
-            name=rastabahn_stored, rastabahn_harmed, location
+            name=rastabahn_stored, rastabahn_harmed, location, holy_waters
         [/clear_variable]
         [endlevel]
             result=victory

data/campaigns/Secrets_of_the_Ancients/scenarios/17_Mortality.cfg

@@ -288,6 +288,9 @@ Not far inside the cave was a ruined castle built in a style I did not recognize
                 [/insert_tag]
             [/modifications]
         [/unit]
+        [clear_variable]
+            name=rastabahn_stored
+        [/clear_variable]
 
         {DELAY}
 

data/campaigns/Secrets_of_the_Ancients/scenarios/20_North_Knalga.cfg

@@ -183,7 +183,7 @@ We left the fires of the mountain behind and plunged once more into darkness. Af
             [/do]
         [/repeat]
         [clear_variable]
-            name=dwarf_type
+            name=dwarf_type, location
         [/clear_variable]
 
         [item]
@@ -425,6 +425,9 @@ We left the fires of the mountain behind and plunged once more into darkness. Af
                     [/filter]
                     variable=alerting_unit
                 [/store_unit]
+                [clear_variable]
+                    name=can_see_the_king
+                [/clear_variable]
                 [fire_event]
                     name=get_more_gold
                 [/fire_event]
@@ -488,11 +491,17 @@ We left the fires of the mountain behind and plunged once more into darkness. Af
             range=vision
             variable=clear_shroud
         [/store_reachable_locations]
+        [clear_variable]
+            name=alerting_unit
+        [/clear_variable]
         [remove_shroud]
             side=1
             find_in=clear_shroud
         [/remove_shroud]
         [redraw][/redraw]
+        [clear_variable]
+            name=clear_shroud
+        [/clear_variable]
 
         [message]
             speaker=Golbanduth
@@ -533,6 +542,9 @@ We left the fires of the mountain behind and plunged once more into darkness. Af
             find_in=clear_shroud
         [/remove_shroud]
         [redraw][/redraw]
+        [clear_variable]
+            name=clear_shroud
+        [/clear_variable]
 
         [move_unit]
             id=porter