[turbofan] Remove dead kArchTailCallJSFunction.

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 7f4cd73f32c3c59f4e84723d143354101b52cf6a..167e77b78a8fc7fb6ea741c192711f4a0daf823c 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -1925,9 +1925,6 @@ void InstructionSelector::VisitTailCall(Node* node) {
         case CallDescriptor::kCallCodeObject:
           opcode = kArchTailCallCodeObject;
           break;
-        case CallDescriptor::kCallJSFunction:
-          opcode = kArchTailCallJSFunction;
-          break;
         case CallDescriptor::kCallAddress:
           opcode = kArchTailCallAddress;
           break;