sabre brings to my attention that the 'tr' suffix is also obsolete

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/ExecutionEngine/dg.exp b/test/ExecutionEngine/dg.exp
index 78dd6f1..f200589 100644
--- a/test/ExecutionEngine/dg.exp
+++ b/test/ExecutionEngine/dg.exp
@@ -1,3 +1,3 @@
 load_lib llvm.exp
 
-RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,c,cpp,tr}]]
+RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,c,cpp}]]