[tests] Change builder inference tests in accordance with new K2 BI diagnostics

Related to KT-59369, KT-59390

compiler/testData/codegen/box/builderInference/issues/kt60291b.kt

@@ -1,12 +1,9 @@
 // ISSUE: KT-60291
 
 // IGNORE_LIGHT_ANALYSIS
-// IGNORE_BACKEND_K1: ANY
+// IGNORE_BACKEND: ANY
 // REASON: red code (see corresponding diagnostic test)
 
-// IGNORE_BACKEND_K2: NATIVE, WASM, JS_IR, JS_IR_ES6
-// REASON: compile-time failure (org.jetbrains.kotlin.backend.common.linkage.issues.IrDisallowedErrorNode: Class found but error nodes are not allowed)
-
 fun box(): String {
     if (true)
         build { setTypeVariable(TargetType()) }