Remove the Valhallists for 0.I experimental (#71705)

* Remove the valhallists

* More obsoletion

* Remove the slaves too

data/json/npcs/factions.json

@@ -497,46 +497,6 @@
     },
     "description": "Individuals who have been enslaved or held prisoner for a long period of time, for various reasons."
   },
-  {
-    "type": "faction",
-    "id": "valhallists",
-    "name": "Norse Evangelicals",
-    "likes_u": 2,
-    "respects_u": 0,
-    "known_by_u": false,
-    "size": 100,
-    "power": 100,
-    "fac_food_supply": { "calories": 172800, "vitamins": {  } },
-    "wealth": 25000,
-    "currency": "signed_chit",
-    "relations": {
-      "valhallists": {
-        "kill on sight": false,
-        "watch your back": true,
-        "share my stuff": true,
-        "guard your stuff": true,
-        "lets you in": true,
-        "defends your space": true,
-        "knows your voice": true
-      },
-      "your_followers": {
-        "kill on sight": false,
-        "watch your back": false,
-        "share my stuff": false,
-        "guard your stuff": false,
-        "lets you in": true,
-        "defends your space": false,
-        "knows your voice": false
-      },
-      "marloss": { "kill on sight": true },
-      "hells_raiders": { "kill on sight": true }
-    },
-    "epilogues": [
-      { "power_min": 0, "power_max": 149, "id": "epilogue_faction_valhallists_0" },
-      { "power_min": 150, "id": "epilogue_faction_valhallists_150" }
-    ],
-    "description": "A band of people practicing 'Asatro' or 'Forn Sidr'; the worship of the Norse pantheon.  Thay have the common goal of recruiting new members, entering Valhalla, and exterminating the Marloss Evangelists; whom they deem heretics."
-  },
   {
     "type": "faction",
     "id": "apis_hive",