core: simplify event iterator

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

src/core/Null.zig

@@ -25,11 +25,8 @@ pub const Null = @This();
 
 allocator: std.mem.Allocator,
 core: *Core,
-
-events: Core.EventQueue,
 input_state: Core.InputState,
 modifiers: KeyMods,
-
 title: [:0]u8,
 display_mode: DisplayMode,
 vsync_mode: VSyncMode,
@@ -42,7 +39,14 @@ size: Size,
 surface_descriptor: gpu.Surface.Descriptor,
 
 // Called on the main thread
-pub fn init(_: *Null, _: InitOptions) !void {
+pub fn init(
+    nul: *Null,
+    core: *Core.Mod,
+    options: InitOptions,
+) !void {
+    _ = nul;
+    _ = options;
+    _ = core;
     return;
 }
 
@@ -55,11 +59,6 @@ pub fn update(_: *Null) !void {
     return;
 }
 
-// May be called from any thread.
-pub inline fn pollEvents(n: *Null) Core.EventIterator {
-    return .{ .queue = &n.events };
-}
-
 // May be called from any thread.
 pub fn setTitle(_: *Null, _: [:0]const u8) void {
     return;