KT-7151 Convert 'System.out.println()' to just 'println()'

#KT-7151 Fixed

j2k/testData/fileOrElement/switch/caseWithBlock.kt

@@ -2,16 +2,16 @@ fun foo() {
     when (a) {
         1 -> {
             val x = 1
-            System.out.println(x)
+            println(x)
         }
 
         2 -> {
             val x = 2
-            System.out.println(x)
+            println(x)
         }
 
         3 -> {
-            System.out.println(3)
+            println(3)
         }
     }
 }