Falls over when using the #[instrument] macro from tracing on default functions

[w-charlton-virifides]

Not a huge deal and removing the macro invocation fixed it, but I spent some time debugging, and this might help some people get to where I did faster so I'll leave this here.

error[E0424]: expected value, found module `self`
   --> path/to/file.rs:142:1
    |
142 | / enum_dispatch!(
143 | |     pub trait SomeTrait: Debug + Sized {
144 | |         fn func(&self) -> Uuid;
145 | |         fn otherfunc(&self) -> crate::models::ContainerTier;
...   |
338 | | );
    | | ^
    | | |
    | |_`self` value is a keyword only available in methods with a `self` parameter
    |   this function has a `self` parameter, but a macro invocation can only access identifiers it receives from parameters
    |
    = note: this error originates in the macro `$crate::__munch_methods` which comes from the expansion of the macro `enum_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)

Mangled the function names and file path because this is proprietary code.