sysgpu: remove everything related to dawn

src/core/platform/wasm/entrypoint.zig

@@ -1,42 +0,0 @@
-// Check that the user's app matches the required interface.
-comptime {
-    if (!@import("builtin").is_test) @import("mach").core.AppInterface(@import("app"));
-}
-
-// Forward "app" declarations into our namespace, such that @import("root").foo works as expected.
-pub usingnamespace @import("app");
-const App = @import("app").App;
-
-const std = @import("std");
-
-const mach = @import("mach");
-const core = mach.core;
-const gpu = mach.gpu;
-
-var app: App = undefined;
-export fn wasmInit() void {
-    App.init(&app) catch |err| @panic(@errorName(err));
-}
-
-export fn wasmUpdate() bool {
-    if (core.update(&app) catch |err| @panic(@errorName(err))) {
-        return true;
-    }
-    return false;
-}
-
-export fn wasmDeinit() void {
-    app.deinit();
-}
-
-// Define std_options.logFn if the user did not in their "app" main.zig
-pub usingnamespace if (@hasDecl(App, "std_options")) struct {} else struct {
-    pub const std_options = std.Options{
-        .logFn = core.defaultLog,
-    };
-};
-
-// Define panic() if the user did not in their "app" main.zig
-pub usingnamespace if (@hasDecl(App, "panic")) struct {} else struct {
-    pub const panic = core.defaultPanic;
-};