Indirect tests for tail call diagnostics removed

compiler/testData/codegen/box/functions/tailRecursion/unitBlocks.kt

@@ -1,23 +1,21 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-tailRecursive fun test(x : Int, e : Any) : Unit {
+tailRecursive fun test(x : Int) : Unit {
     if (x == 1) {
-        test(x - 1, "tail")
+        test(x - 1)
     } else if (x == 2) {
-        test(x - 1, "tail")
+        test(x - 1)
         return
     } else if (x == 3) {
-        <!NON_TAIL_RECURSIVE_CALL!>test<!>(x - 1, "no tail")
+        <!NON_TAIL_RECURSIVE_CALL!>test<!>(x - 1)
         if (x == 3) {
-            test(x - 1, "tail")
+            test(x - 1)
         }
         return
     } else if (x > 0) {
-        test(x - 1, "tail")
+        test(x - 1)
     }
 }
 
 fun box() : String {
-    test(1000000, "test")
+    test(1000000)
     return "OK"
 }