[crankshaft] Remove HLoadKeyedGeneric and use HCallWithDescriptor to call KeyedLoadIC.

src/crankshaft/arm64/lithium-arm64.h

Index: src/crankshaft/arm64/lithium-arm64.h
diff --git a/src/crankshaft/arm64/lithium-arm64.h b/src/crankshaft/arm64/lithium-arm64.h
index 187d9d81ec96ad0b52ff24d7a12bcd3c30f67de7..782a6b334e5039ec5594c5ee6f7d9ef076a21873 100644
--- a/src/crankshaft/arm64/lithium-arm64.h
+++ b/src/crankshaft/arm64/lithium-arm64.h
@@ -94,7 +94,6 @@ class LCodeGen;
   V(LoadKeyedExternal)                       \
   V(LoadKeyedFixed)                          \
   V(LoadKeyedFixedDouble)                    \
-  V(LoadKeyedGeneric)                        \
   V(LoadNamedField)                          \
   V(LoadRoot)                                \
   V(MathAbs)                                 \
@@ -1617,26 +1616,6 @@ class LLoadKeyedFixedDouble: public LLoadKeyed<1> {
 };
 
 
-class LLoadKeyedGeneric final : public LTemplateInstruction<1, 3, 1> {
- public:
-  LLoadKeyedGeneric(LOperand* context, LOperand* object, LOperand* key,
-                    LOperand* vector) {
-    inputs_[0] = context;
-    inputs_[1] = object;
-    inputs_[2] = key;
-    temps_[0] = vector;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* object() { return inputs_[1]; }
-  LOperand* key() { return inputs_[2]; }
-  LOperand* temp_vector() { return temps_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric, "load-keyed-generic")
-  DECLARE_HYDROGEN_ACCESSOR(LoadKeyedGeneric)
-};
-
-
 class LLoadRoot final : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(LoadRoot, "load-root")