Removed some OP4 dead versions from Valve. HL has no concept of these, not even animations for them in their respective models.

zpak001.pk3dir/def/monsters.def

@@ -1,7 +1,6 @@
 include "monsters/alien_controller.def"
 include "monsters/alien_grunt.def"
 include "monsters/alien_slave.def"
-include "monsters/alien_slave_dead.def"
 include "monsters/apache.def"
 include "monsters/babycrab.def"
 include "monsters/barnacle.def"
@@ -18,7 +17,6 @@ include "monsters/headcrab.def"
 include "monsters/hevsuit_dead.def"
 include "monsters/hgrunt_dead.def"
 include "monsters/houndeye.def"
-include "monsters/houndeye_dead.def"
 include "monsters/human_assassin.def"
 include "monsters/human_grunt.def"
 include "monsters/ichthyosaur.def"

zpak001.pk3dir/def/monsters/alien_slave_dead.def

@@ -1,17 +0,0 @@
-entityDef monster_alien_slave_dead
-{
-	"spawnclass"	"NSMonster"
-	"model"		"models/islave.mdl"
-	"netname"	"Dead Vortigaunt"
-	"health"	"skill:islave_health"
-	"mins"		"-16 -16 0"
-	"maxs"		"16 16 72"
-	"eye_height"	"32"
-	"team"		"2"
-	"propdata"	"actor_alien"
-	"speed_walk"	"32"
-	"speed_run"	"72"
-
-	"dead"		"1"
-	"frame"		"0"
-}

zpak001.pk3dir/def/monsters/houndeye_dead.def

@@ -1,17 +0,0 @@
-entityDef monster_houndeye_dead
-{
-	"spawnclass"	"NSMonster"
-	"model"		"models/houndeye.mdl"
-	"netname"	"Dead Houndeye"
-	"health"	"skill:houndeye_health"
-	"mins"		"-16 -16 0"
-	"maxs"		"16 16 72"
-	"eye_height"	"32"
-	"team"		"2"
-	"propdata"	"actor_alien"
-	"speed_walk"	"32"
-	"speed_run"	"72"
-
-	"dead"		"1"
-	"frame"		"0"
-}