Discard invalid required rank

public/data/battlesuits/ss.json

@@ -3,10 +3,7 @@
   "name": "Snowy Sniper",
   "type": "biologic",
   "valkyrie": "bronya",
-  "strengths": [
-    "physical",
-    "freeze"
-  ],
+  "strengths": ["physical", "freeze"],
   "leader": {
     "core": {
       "name": "Manchine Integration",
@@ -44,8 +41,7 @@
     "subskills": [
       {
         "name": "Line of Fire",
-        "description": "Deal 40.0% more DMG against shields.",
-        "requiredRank": "this"
+        "description": "Deal 40.0% more DMG against shields."
       },
       {
         "name": "Zone Lockdown",
@@ -104,13 +100,11 @@
     "subskills": [
       {
         "name": "Perfect Charge",
-        "description": "Releasing the [ATK] button upon entering the next charge sequence increases Crit Rate of this attack by 30.0%.",
-        "requiredRank": "this"
+        "description": "Releasing the [ATK] button upon entering the next charge sequence increases Crit Rate of this attack by 30.0%."
       },
       {
         "name": "Reactive Charge",
-        "description": "Force evasion when attacked during charging. Can be triggered once every 4.0s. Effect does not interrupt charging.",
-        "requiredRank": "this"
+        "description": "Force evasion when attacked during charging. Can be triggered once every 4.0s. Effect does not interrupt charging."
       },
       {
         "name": "Ultra Charge",
@@ -119,4 +113,4 @@
       }
     ]
   }
-}
+}