remove JavaScriptValueKindInvalid since neither side produces it

Author: j-f1

Runtime/src/js-value.ts

@@ -2,7 +2,6 @@ import { Memory } from "./memory";
 import { pointer } from "./types";
 
 export const enum Kind {
-    Invalid = -1,
     Boolean = 0,
     String = 1,
     Number = 2,

Sources/JavaScriptKit/ConvertibleToJSValue.swift

@@ -199,8 +199,6 @@ extension Array: ConstructibleFromJSValue where Element: ConstructibleFromJSValu
 extension RawJSValue: ConvertibleToJSValue {
     public var jsValue: JSValue {
         switch kind {
-        case .invalid:
-            fatalError()
         case .boolean:
             return .boolean(payload1 != 0)
         case .number:

Sources/_CJavaScriptKit/include/_CJavaScriptKit.h

@@ -13,7 +13,6 @@ typedef unsigned int JavaScriptHostFuncRef;
 
 /// `JavaScriptValueKind` represents the kind of JavaScript primitive value.
 typedef enum __attribute__((enum_extensibility(closed))) {
-  JavaScriptValueKindInvalid = -1,
   JavaScriptValueKindBoolean = 0,
   JavaScriptValueKindString = 1,
   JavaScriptValueKindNumber = 2,