[turbofan] Remove another ineffective optimization from the ControlReducer.

src/compiler/control-reducer.cc

Index: src/compiler/control-reducer.cc
diff --git a/src/compiler/control-reducer.cc b/src/compiler/control-reducer.cc
index 4644440f9c6e1826b11ef940446248437fe907b2..633dfe5abf0b31eb76b13478d43e029edbb0740b 100644
--- a/src/compiler/control-reducer.cc
+++ b/src/compiler/control-reducer.cc
@@ -93,8 +93,6 @@ class ControlReducerImpl final : public AdvancedReducer {
         return Int32Matcher(cond).Is(0) ? kFalse : kTrue;
       case IrOpcode::kInt64Constant:
         return Int64Matcher(cond).Is(0) ? kFalse : kTrue;
-      case IrOpcode::kNumberConstant:
-        return NumberMatcher(cond).Is(0) ? kFalse : kTrue;
       case IrOpcode::kHeapConstant: {
         Handle<Object> object =
             HeapObjectMatcher<Object>(cond).Value().handle();