[WASM SIMD] Remove opcodes that are slow on some platforms.

src/compiler/mips/instruction-selector-mips.cc

Index: src/compiler/mips/instruction-selector-mips.cc
diff --git a/src/compiler/mips/instruction-selector-mips.cc b/src/compiler/mips/instruction-selector-mips.cc
index 08e0cd92964a5cdb71680dbbc09e45f3111e38c8..f831d54ac9c9ae87a8d22d85cb916df64fb6f0ef 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -2047,18 +2047,10 @@ void InstructionSelector::VisitF32x4RecipApprox(Node* node) {
   VisitRR(this, kMipsF32x4RecipApprox, node);
 }
 
-void InstructionSelector::VisitF32x4RecipRefine(Node* node) {
-  VisitRRR(this, kMipsF32x4RecipRefine, node);
-}
-
 void InstructionSelector::VisitF32x4RecipSqrtApprox(Node* node) {
   VisitRR(this, kMipsF32x4RecipSqrtApprox, node);
 }
 
-void InstructionSelector::VisitF32x4RecipSqrtRefine(Node* node) {
-  VisitRRR(this, kMipsF32x4RecipSqrtRefine, node);
-}
-
 void InstructionSelector::VisitF32x4Add(Node* node) {
   VisitRRR(this, kMipsF32x4Add, node);
 }