OTA: use only one codename for devices

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Author: LordShenron

devices.json

@@ -13,7 +13,7 @@
     {
       "brand": "Xiaomi",
       "name": "Pocophone X3 PRO",
-      "codename": "vayu/bhima",
+      "codename": "vayu",
       "maintainer_name": "LordShenron",
       "maintainer_xda": "null",
       "maintainer_country": "IND",
@@ -24,7 +24,7 @@
   {
       "brand": "Xiaomi",
       "name": "POCO F3 / Mi 11x / Redmi K40",
-      "codename": "alioth/aliothin",
+      "codename": "alioth",
       "maintainer_name": "Eidoron1",
       "maintainer_xda": "https://forum.xda-developers.com/m/eidoron1.11939237/",
       "maintainer_country": "NEP",