[runtime] Remove unused %ToBool runtime function.

test/cctest/compiler/test-run-jscalls.cc

Index: test/cctest/compiler/test-run-jscalls.cc
diff --git a/test/cctest/compiler/test-run-jscalls.cc b/test/cctest/compiler/test-run-jscalls.cc
index 8de2d7a2142d516d781618bd552ed1aa492dbc91..893c2fa46052eb9f64d3b1d00c8770b6a4e24a64 100644
--- a/test/cctest/compiler/test-run-jscalls.cc
+++ b/test/cctest/compiler/test-run-jscalls.cc
@@ -132,20 +132,6 @@ TEST(ConstructorCall) {
 
 
 // TODO(titzer): factor these out into test-runtime-calls.cc
-TEST(RuntimeCallCPP1) {
-  FLAG_allow_natives_syntax = true;
-  FunctionTester T("(function(a) { return %ToBool(a); })");
-
-  T.CheckCall(T.true_value(), T.Val(23), T.undefined());
-  T.CheckCall(T.true_value(), T.Val(4.2), T.undefined());
-  T.CheckCall(T.true_value(), T.Val("str"), T.undefined());
-  T.CheckCall(T.true_value(), T.true_value(), T.undefined());
-  T.CheckCall(T.false_value(), T.false_value(), T.undefined());
-  T.CheckCall(T.false_value(), T.undefined(), T.undefined());
-  T.CheckCall(T.false_value(), T.Val(0.0), T.undefined());
-}
-
-
 TEST(RuntimeCallCPP2) {
   FLAG_allow_natives_syntax = true;
   FunctionTester T("(function(a,b) { return %NumberAdd(a, b); })");