assets: Drop unused JSON files

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/assets/accent.json

@@ -1,58 +0,0 @@
-[
-  {
-    "id": "0",
-    "accent": ""
-  },
-  {
-    "id": "1",
-    "accent": "#6C63FF"
-  },
-  {
-    "id": "2",
-    "accent": "#FF00FF"
-  },
-  {
-    "id": "3",
-    "accent": "#F50057"
-  },
-  {
-    "id": "4",
-    "accent": "#F9A826"
-  },
-  {
-    "id": "5",
-    "accent": "#49A942"
-  },
-  {
-    "id": "6",
-    "accent": "#6633cc"
-  },
-  {
-    "id": "7",
-    "accent": "#52565e"
-  },
-  {
-    "id": "8",
-    "accent": "#ee70a6"
-  },
-  {
-    "id": "9",
-    "accent": "#b5c327"
-  },
-  {
-    "id": "10",
-    "accent": "#f38654"
-  },
-  {
-    "id": "11",
-    "accent": "#59A8E2"
-  },
-  {
-    "id": "12",
-    "accent": "#7289da"
-  },
-  {
-    "id": "13",
-    "accent": "#0078D7"
-  }
-]

app/src/main/assets/permissions.json

@@ -1,12 +0,0 @@
-[
-  {
-    "id": "0",
-    "title": "External Storage Access",
-    "subtitle": "To save downloads (APKs & OBBs), export &  import device configs on external storage."
-  },
-  {
-    "id": "1",
-    "title": "External Storage Manager",
-    "subtitle": "Required on devices running Android R+, additional to External Storage Access"
-  }
-]

app/src/main/assets/themes.json

@@ -1,32 +0,0 @@
-[
-  {
-    "id": "0",
-    "title": "System",
-    "subtitle": "Follow system themes."
-  },
-  {
-    "id": "1",
-    "title": "Light",
-    "subtitle": "Bright, suitable for daylight conditions"
-  },
-  {
-    "id": "2",
-    "title": "Dark",
-    "subtitle": "Relatively dark theme, best for night owls"
-  },
-  {
-    "id": "3",
-    "title": "Pitch Black",
-    "subtitle": "Black theme, best for AMOLED Displays"
-  },
-  {
-    "id": "4",
-    "title": "Dark-X",
-    "subtitle": "Variant of dark theme"
-  },
-  {
-    "id": "5",
-    "title": "Darkord",
-    "subtitle": "Kanged from discord"
-  }
-]