Stabilize nontrapping-fptoint

Author: daxpedda

compiler/rustc_codegen_ssa/src/target_features.rs

@@ -286,7 +286,7 @@ const WASM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
     ("exception-handling", Some(sym::wasm_target_feature)),
     ("multivalue", Some(sym::wasm_target_feature)),
     ("mutable-globals", Some(sym::wasm_target_feature)),
-    ("nontrapping-fptoint", Some(sym::wasm_target_feature)),
+    ("nontrapping-fptoint", None),
     ("reference-types", Some(sym::wasm_target_feature)),
     ("relaxed-simd", Some(sym::wasm_target_feature)),
     ("sign-ext", Some(sym::wasm_target_feature)),