Fix invalid lint_node_id being put on a removed stmt

src/test/ui/check-cfg/stmt-no-ice.rs

@@ -0,0 +1,10 @@
+// This test checks that there is no ICE with this code
+//
+// check-pass
+// compile-flags:--check-cfg=names() -Z unstable-options
+
+fn main() {
+    #[cfg(crossbeam_loom)]
+    //~^ WARNING unexpected `cfg` condition name
+    {}
+}

src/test/ui/check-cfg/stmt-no-ice.stderr

@@ -0,0 +1,10 @@
+warning: unexpected `cfg` condition name
+  --> $DIR/stmt-no-ice.rs:7:11
+   |
+LL |     #[cfg(crossbeam_loom)]
+   |           ^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(unexpected_cfgs)]` on by default
+
+warning: 1 warning emitted
+