Remove refmaps usage

They're not needed anymore in recent minecraft + architectury-loom versions

Signed-off-by: Username404-59 <w.iron.zombie@gmail.com>

build.gradle.kts

@@ -60,11 +60,6 @@ subprojects {
             silentMojangMappingsLicense()
             officialMojangMappings().parchment("org.parchmentmc.data:parchment-1.21.11:2025.12.20")
         }
-        val refmap = "snowygui-${project.name}-refmap.json"
-        mixin {
-            useLegacyMixinAp = true
-            defaultRefmapName = refmap
-        }
     }
     apply(plugin = "com.github.johnrengelman.shadow")
     val shadowC by configurations.creating

common/src/main/resources/snowygui-common.mixins.json

@@ -8,6 +8,5 @@
   "injectors": {
     "defaultRequire": 1
   },
-  "minVersion": "0.8",
-  "refmap": "snowygui-common-refmap.json"
+  "minVersion": "0.8"
 }