[Test] Enable SMAP dump handler in boxInline tests

compiler/testData/codegen/boxInline/smap/inlineOnly/stdlibInlineOnlyOneLine.kt

@@ -14,18 +14,4 @@ fun box(): String {
     return "O".myLet(fun (it: String): String { return it + k })
 }
 
-// SMAP_FILE: 2.smap
 // See KT-23064 for the problem and InlineOnlySmapSkipper for an explanation.
-SMAP
-2.kt
-Kotlin
-*S Kotlin
-*F
-+ 1 2.kt
-_2Kt
-+ 2 fake.kt
-kotlin/jvm/internal/FakeKt
-*L
-1#1,9:1
-1#2:10
-*E