[WASM] Simplify SIMD shuffle opcodes.

src/compiler/machine-operator.cc

Index: src/compiler/machine-operator.cc
diff --git a/src/compiler/machine-operator.cc b/src/compiler/machine-operator.cc
index a5d27a68449df679f16c4eac5b2393732bad5f5c..250037c9aee8ed0d8a1f59914f7c47e20715883a 100644
--- a/src/compiler/machine-operator.cc
+++ b/src/compiler/machine-operator.cc
@@ -981,22 +981,6 @@ SIMD_LANE_OP_LIST(SIMD_LANE_OPS)
 SIMD_FORMAT_LIST(SIMD_SHIFT_OPS)
 #undef SIMD_SHIFT_OPS
 
-const Operator* MachineOperatorBuilder::S32x4Shuffle(uint8_t shuffle[16]) {
-  uint8_t* array = zone_->NewArray<uint8_t>(4);
-  memcpy(array, shuffle, 4);
-  return new (zone_)
-      Operator1<uint8_t*>(IrOpcode::kS32x4Shuffle, Operator::kPure, "Shuffle",
-                          2, 0, 0, 1, 0, 0, array);
-}
-
-const Operator* MachineOperatorBuilder::S16x8Shuffle(uint8_t shuffle[16]) {
-  uint8_t* array = zone_->NewArray<uint8_t>(8);
-  memcpy(array, shuffle, 8);
-  return new (zone_)
-      Operator1<uint8_t*>(IrOpcode::kS16x8Shuffle, Operator::kPure, "Shuffle",
-                          2, 0, 0, 1, 0, 0, array);
-}
-
 const Operator* MachineOperatorBuilder::S8x16Shuffle(uint8_t shuffle[16]) {
   uint8_t* array = zone_->NewArray<uint8_t>(16);
   memcpy(array, shuffle, 16);