Update remove-dead-values.mlir

Author: Menooker

mlir/test/Transforms/remove-dead-values.mlir

@@ -531,4 +531,4 @@ module {
 // CHECK-LABEL: func @test_zero_operands
 // CHECK: memref.alloca_scope
 // CHECK: memref.store
-// CHECK-NOT: memref.alloca_scope.return
+// CHECK-NOT: memref.alloca_scope.return