zig init template: remove outdated comments

closes #23040

Author: andrewrk

lib/init/build.zig.zon

@@ -30,11 +30,6 @@
     // supported use case.
     .minimum_zig_version = ".ZIGVER",
 
-    // This field is optional.
-    // This is currently advisory only; Zig does not yet do anything
-    // with this value.
-    //.minimum_zig_version = "0.11.0",
-
     // This field is optional.
     // Each dependency must either provide a `url` and `hash`, or a `path`.
     // `zig build --fetch` can be used to fetch all dependencies of a package, recursively.