Remove Java Toolchain

build.gradle.kts

@@ -10,12 +10,6 @@ description = "Altitude Villager Shop plugin."
 
 apply<JavaLibraryPlugin>()
 
-java {
-    toolchain {
-        languageVersion.set(JavaLanguageVersion.of(21))
-    }
-}
-
 publishing {
     publications {
         create<MavenPublication>("mavenJava") {