Revert r219223, it creates invalid PHI nodes.

llvm-svn: 219587
diff --git a/llvm/test/Transforms/SimplifyCFG/UnreachableEliminate.ll b/llvm/test/Transforms/SimplifyCFG/UnreachableEliminate.ll
index 21428c6..fc98746 100644
--- a/llvm/test/Transforms/SimplifyCFG/UnreachableEliminate.ll
+++ b/llvm/test/Transforms/SimplifyCFG/UnreachableEliminate.ll
@@ -47,7 +47,7 @@
 }
 
 ; PR9450
-define i32 @test4(i32 %v, i32 %w) {
+define i32 @test4(i32 %v) {
 ; CHECK: entry:
 ; CHECK-NEXT:  switch i32 %v, label %T [
 ; CHECK-NEXT:    i32 3, label %V
@@ -67,7 +67,7 @@
 default:
         unreachable
 U:
-        ret i32 %w
+        ret i32 1
 T:
         ret i32 2
 }