Remove unused HIsNumberAndBranch instruction.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 0e615f257dfbde7039da1ff8b7e8f004ab342fe8..7fbcad9744366c22cc55e4d6a591457f3fca5571 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -116,7 +116,6 @@ class LCodeGen;
   V(IsObjectAndBranch)                          \
   V(IsStringAndBranch)                          \
   V(IsSmiAndBranch)                             \
-  V(IsNumberAndBranch)                          \
   V(IsUndetectableAndBranch)                    \
   V(Label)                                      \
   V(LazyBailout)                                \
@@ -922,19 +921,6 @@ class LIsObjectAndBranch V8_FINAL : public LControlInstruction<1, 1> {
 };
 
 
-class LIsNumberAndBranch V8_FINAL : public LControlInstruction<1, 0> {
- public:
-  explicit LIsNumberAndBranch(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(IsNumberAndBranch, "is-number-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(IsNumberAndBranch)
-};
-
-
 class LIsStringAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  public:
   LIsStringAndBranch(LOperand* value, LOperand* temp) {