Indirect tests for tail call diagnostics removed

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

@@ -1,25 +1,23 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
 class A {
-    tailRecursive fun f1(c : Int, x : Any) {
+    tailRecursive fun f1(c : Int) {
         if (c > 0) {
-            this.f1(c - 1, "tail")
+            this.f1(c - 1)
         }
     }
 
-    tailRecursive fun f2(c : Int, x : Any) {
+    tailRecursive fun f2(c : Int) {
         if (c > 0) {
-            f2(c - 1, "tail 108")
+            f2(c - 1)
         }
     }
 
-    <!NO_TAIL_CALLS_FOUND!>tailRecursive fun f3(a : A, x : Any)<!> {
-        a.<!NON_TAIL_RECURSIVE_CALL!>f3<!>(a, "no tail") // non-tail recursion, could be potentially resolved by condition if (a == this) f3() else a.f3()
+    <!NO_TAIL_CALLS_FOUND!>tailRecursive fun f3(a : A)<!> {
+        a.<!NON_TAIL_RECURSIVE_CALL!>f3<!>(a) // non-tail recursion, could be potentially resolved by condition if (a == this) f3() else a.f3()
     }
 }
 
 fun box() : String {
-    A().f1(1000000, "test")
-    A().f2(1000000, "test")
+    A().f1(1000000)
+    A().f2(1000000)
     return "OK"
 }