Remove lingering references to .llx and .tr in the tests.

llvm-svn: 51500
diff --git a/llvm/test/Feature/llvm2cpp.exp b/llvm/test/Feature/llvm2cpp.exp
index b05d64a..de0126c 100644
--- a/llvm/test/Feature/llvm2cpp.exp
+++ b/llvm/test/Feature/llvm2cpp.exp
@@ -1,3 +1,3 @@
 load_lib llvm2cpp.exp
 
-llvm2cpp-test [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,llx}]]
+llvm2cpp-test [lsort [glob -nocomplain $srcdir/$subdir/*.ll]]