[GC][NFC] Simplify code now that we only have one safepoint kind

This is the NFC follow up to exploit the semantic simplification from r346701

llvm-svn: 346712
diff --git a/llvm/lib/CodeGen/GCRootLowering.cpp b/llvm/lib/CodeGen/GCRootLowering.cpp
index fff76f5..e8ccd84 100644
--- a/llvm/lib/CodeGen/GCRootLowering.cpp
+++ b/llvm/lib/CodeGen/GCRootLowering.cpp
@@ -268,10 +268,8 @@
   MachineBasicBlock::iterator RAI = CI;
   ++RAI;
 
-  if (FI->getStrategy().needsSafePoint(GC::PostCall)) {
-    MCSymbol *Label = InsertLabel(*CI->getParent(), RAI, CI->getDebugLoc());
-    FI->addSafePoint(GC::PostCall, Label, CI->getDebugLoc());
-  }
+  MCSymbol *Label = InsertLabel(*CI->getParent(), RAI, CI->getDebugLoc());
+  FI->addSafePoint(Label, CI->getDebugLoc());
 }
 
 void GCMachineCodeAnalysis::FindSafePoints(MachineFunction &MF) {