Remove swjs_library_version

This function was used to check the compatibility between the JavaScriptKit
Swift library and JS runtime because they were manually kept in sync by
users of the library with npm and SwiftPM. Now that the library is
distributed as a single SwiftPM package, there is no need for this
function.

Author: kateinoigakukun

Runtime/src/index.ts

@@ -56,14 +56,6 @@ export class SwiftRuntime {
                 `
             );
         }
-        if (this.exports.swjs_library_version() != this.version) {
-            throw new Error(
-                `The versions of JavaScriptKit are incompatible.
-                WebAssembly runtime ${this.exports.swjs_library_version()} != JS runtime ${
-                    this.version
-                }`
-            );
-        }
     }
 
     main() {

Runtime/src/types.ts

@@ -7,7 +7,6 @@ export type JavaScriptValueKind = number;
 export type JavaScriptValueKindAndFlags = number;
 
 export interface ExportedFunctions {
-    swjs_library_version(): number;
     swjs_library_features(): number;
     swjs_prepare_host_function_call(size: number): pointer;
     swjs_cleanup_host_function_call(argv: pointer): void;

Sources/JavaScriptKit/Runtime/index.js

@@ -13,13 +13,6 @@ extern void *memcpy (void *__restrict, const void *__restrict, size_t);
 #include <stdbool.h>
 
 #endif
-/// The compatibility runtime library version.
-/// Notes: If you change any interface of runtime library, please increment
-/// this and `SwiftRuntime.version` in `./Runtime/src/index.ts`.
-__attribute__((export_name("swjs_library_version")))
-int swjs_library_version(void) {
-    return 708;
-}
 
 __attribute__((export_name("swjs_prepare_host_function_call")))
 void *swjs_prepare_host_function_call(const int argc) {