[crankshaft] Remove HLoadGlobalGeneric and use HCallWithDescriptor instead to call LoadGlobalIC.

src/crankshaft/ppc/lithium-ppc.cc

Index: src/crankshaft/ppc/lithium-ppc.cc
diff --git a/src/crankshaft/ppc/lithium-ppc.cc b/src/crankshaft/ppc/lithium-ppc.cc
index 738cf231ce0e41c706cefcf7a0c325b4dfcccc0a..74c13d8efb5bec769cfbefa99198bf312e8b7fe4 100644
--- a/src/crankshaft/ppc/lithium-ppc.cc
+++ b/src/crankshaft/ppc/lithium-ppc.cc
@@ -1974,15 +1974,6 @@ LInstruction* LChunkBuilder::DoConstant(HConstant* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
-  LOperand* context = UseFixed(instr->context(), cp);
-  LOperand* vector = FixedTemp(LoadWithVectorDescriptor::VectorRegister());
-
-  LLoadGlobalGeneric* result = new (zone()) LLoadGlobalGeneric(context, vector);
-  return MarkAsCall(DefineFixed(result, r3), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoLoadContextSlot(HLoadContextSlot* instr) {
   LOperand* context = UseRegisterAtStart(instr->value());
   LInstruction* result =