Remove LANGUAGE_VERSION from boxInline tests

compiler/testData/codegen/boxInline/defaultValues/lambdaInlining/jvmStaticDefault.kt

@@ -1,7 +1,6 @@
 // IGNORE_BACKEND: JVM_IR
 // IGNORE_BACKEND: JS_IR
 // FILE: 1.kt
-// LANGUAGE_VERSION: 1.2
 // SKIP_INLINE_CHECK_IN: inlineFun$default
 // IGNORE_BACKEND: JS, NATIVE
 //WITH_RUNTIME
@@ -20,4 +19,4 @@ import test.*
 
 fun box(): String {
     return X.inlineFun("OK")
-}
+}