Remove Eris UI theme (#25673)

add

Resources/Textures/Interface/Eris/Slots/meta.json

@@ -1,68 +0,0 @@
-{
-    "version": 1,
-    "size": {
-        "x": 32,
-        "y": 32
-    },
-    "license": "CC-BY-NC-SA-3.0",
-    "copyright": "Heavily derived from https://github.com/goonstation/goonstation at commit e77d85d9c1d93aa32da7702737ceeac2b56738ac.",
-    "states": [
-        {
-            "name": "back",
-        },
-        {
-            "name": "belt"
-        },
-        {
-            "name": "block"
-        },
-        {
-            "name": "ears"
-        },
-        {
-            "name": "glasses"
-        },
-        {
-            "name": "gloves"
-        },
-        {
-            "name": "hand_l"
-        },
-        {
-            "name": "hand_l_active"
-        },
-        {
-            "name": "hand_r"
-        },
-        {
-            "name": "hand_r_active"
-        },
-        {
-            "name": "head"
-        },
-        {
-            "name": "id"
-        },
-        {
-            "name": "invtoggle"
-        },
-        {
-            "name": "mask"
-        },
-		{
-            "name": "neck"
-        },
-        {
-            "name": "pocket"
-        },
-        {
-            "name": "shoes"
-        },
-        {
-            "name": "suit"
-        },
-        {
-            "name": "uniform"
-        }
-    ]
-}