Revert "adding spider soulless variation"

This reverts commit 7a103d1733. This would cause OOS errors on stable due to the different HP and movetype.

data/core/units/monsters/Giant_Spider.cfg

@@ -19,7 +19,6 @@
     {AMLA_DEFAULT}
     cost=55
     usage=fighter
-    undead_variation=spider
     description= _ "Giant Spiders are said to roam the depths of Knalga, devouring many victims. They have a vicious bite, made worse by the fact that it is poisoned, and can also fling webs through the air to trap their prey."+{SPECIAL_NOTES}+{SPECIAL_NOTES_POISON}+{SPECIAL_NOTES_SLOW}
     die_sound=hiss-big.wav
     {DEFENSE_ANIM "units/monsters/spider-melee-2.png" "units/monsters/spider-melee-1.png" hiss.wav }

data/core/units/undead/Corpse_Soulless.cfg

@@ -168,15 +168,6 @@
         {UNIT_BODY_SOULLESS_GRAPHICS soulless-saurian}
     [/variation]
 
-    [variation]
-        variation_id=spider
-        variation_name= _ "wc_variation^Spider"
-        inherit=yes
-        profile=portraits/undead/zombie-spider.png
-        {UNIT_BODY_SOULLESS_STATS    mountainfoot 4 36}
-        {UNIT_BODY_SOULLESS_GRAPHICS soulless-spider}
-    [/variation]
-
     [variation]
         variation_id=swimmer
         variation_name= _ "wc_variation^Swimmer"

data/core/units/undead/Corpse_Walking.cfg

@@ -172,7 +172,7 @@
         variation_name= _ "wc_variation^Spider"
         inherit=yes
         profile=portraits/undead/zombie-spider.png
-        {UNIT_BODY_WALKING_CORPSE_STATS    mountainfoot 4 25}
+        {UNIT_BODY_WALKING_CORPSE_STATS    dwarvishfoot 4 25}
         {UNIT_BODY_WALKING_CORPSE_GRAPHICS zombie-spider}
     [/variation]