AMDGPU: Remove remnants of old address space mapping

llvm-svn: 341165
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
index 87b072c..c265283 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -32,8 +32,6 @@
     return LLT::pointer(AS, TM.getPointerSizeInBits(AS));
   };
 
-  auto AMDGPUAS = ST.getAMDGPUAS();
-
   const LLT S1 = LLT::scalar(1);
   const LLT V2S16 = LLT::vector(2, 16);
 
@@ -44,8 +42,8 @@
   const LLT GlobalPtr = GetAddrSpacePtr(AMDGPUAS::GLOBAL_ADDRESS);
   const LLT ConstantPtr = GetAddrSpacePtr(AMDGPUAS::CONSTANT_ADDRESS);
   const LLT LocalPtr = GetAddrSpacePtr(AMDGPUAS::LOCAL_ADDRESS);
-  const LLT FlatPtr = GetAddrSpacePtr(AMDGPUAS.FLAT_ADDRESS);
-  const LLT PrivatePtr = GetAddrSpacePtr(AMDGPUAS.PRIVATE_ADDRESS);
+  const LLT FlatPtr = GetAddrSpacePtr(AMDGPUAS::FLAT_ADDRESS);
+  const LLT PrivatePtr = GetAddrSpacePtr(AMDGPUAS::PRIVATE_ADDRESS);
 
   const LLT AddrSpaces[] = {
     GlobalPtr,