Remove ruby debug adapter (#33541)

Now that the extension version has been bumped we can remove our in-tree
one to avoid having duplicate debug adapters.

Release Notes:

- The ruby debug adapter has been moved to the [ruby
extension](https://github.com/zed-extensions/ruby), if you have any
saved debug scenarios you'll need to change `"adapter": "Ruby"` to
`"adapter": "rdbg"`.

crates/dap_adapters/src/dap_adapters.rs

@@ -4,7 +4,6 @@ mod go;
 mod javascript;
 mod php;
 mod python;
-mod ruby;
 
 use std::sync::Arc;
 
@@ -25,7 +24,6 @@ use gpui::{App, BorrowAppContext};
 use javascript::JsDebugAdapter;
 use php::PhpDebugAdapter;
 use python::PythonDebugAdapter;
-use ruby::RubyDebugAdapter;
 use serde_json::json;
 use task::{DebugScenario, ZedDebugConfig};
 
@@ -35,7 +33,6 @@ pub fn init(cx: &mut App) {
         registry.add_adapter(Arc::from(PythonDebugAdapter::default()));
         registry.add_adapter(Arc::from(PhpDebugAdapter::default()));
         registry.add_adapter(Arc::from(JsDebugAdapter::default()));
-        registry.add_adapter(Arc::from(RubyDebugAdapter));
         registry.add_adapter(Arc::from(GoDebugAdapter::default()));
         registry.add_adapter(Arc::from(GdbDebugAdapter));