rm TotallyNotJson

TotallyNotJson.roc now lives on the farm in virtual-dom-wip as Json.roc.
Any reference in stdlib or builtins has been removed, as well as the
last places it was used (in python/ruby-interop examples).

crates/compiler/load_internal/src/lib.rs

@@ -25,5 +25,4 @@ pub const BUILTIN_MODULES: &[(ModuleId, &str)] = &[
     (ModuleId::DECODE, "Decode"),
     (ModuleId::HASH, "Hash"),
     (ModuleId::INSPECT, "Inspect"),
-    (ModuleId::JSON, "TotallyNotJson"),
 ];