Removing invalid gfx entries

Change-Id: I1a9a9a064f5f65ecc3e124c5dd7d6baf6b5ccb5c

runtime/hsa-runtime/core/runtime/hsa.cpp

@@ -1906,10 +1906,6 @@ static std::string ConvertOldTargetNameToNew(
     NewName = "amdgcn-amd-amdhsa--gfx90c";
     xnack_supported = true;
   }
-  else if (OldName == "AMD:AMDGPU:9:4:0") {
-    NewName = "amdgcn-amd-amdhsa--gfx940";
-    xnack_supported = true;
-  }
   else {
     // Code object v2 only supports asics up to gfx906 plus gfx90c. Do NOT add
     // handling of new asics into this if-else-if* block.