clean code

Author: Zzzen

src/compiler/checker.ts

@@ -3391,7 +3391,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
         // 1. When result is undefined, after checking for a missing "this."
         // 2. When result is defined
         function checkAndReportErrorForInvalidInitializer() {
-            if (propertyWithInvalidInitializer && !(emitStandardClassFields)) {
+            if (propertyWithInvalidInitializer && !emitStandardClassFields) {
                 // We have a match, but the reference occurred within a property initializer and the identifier also binds
                 // to a local variable in the constructor where the code will be emitted. Note that this is actually allowed
                 // with emitStandardClassFields because the scope semantics are different.