workspace: remove worker credential refresh flow

crates/worker-runtime/src/execution.rs

@@ -31,7 +31,6 @@ pub enum WorkerExecutionOperation {
     Restore,
     Input,
     ProtocolMethod,
-    ReplaceWorkspaceAccessToken,
     Stop,
     Cancel,
 }
@@ -332,17 +331,6 @@ pub trait WorkerExecutionBackend: Send + Sync + 'static {
         Vec::new()
     }
 
-    fn replace_workspace_access_token(
-        &self,
-        _handle: &WorkerExecutionHandle,
-        _access_token: String,
-    ) -> WorkerExecutionResult {
-        WorkerExecutionResult::unsupported(
-            WorkerExecutionOperation::ReplaceWorkspaceAccessToken,
-            "execution backend does not support replacing Workspace access tokens",
-        )
-    }
-
     fn stop_worker(&self, _handle: &WorkerExecutionHandle) -> WorkerExecutionResult {
         WorkerExecutionResult::unsupported(
             WorkerExecutionOperation::Stop,
@@ -455,15 +443,6 @@ impl WorkerExecutionBackendRef {
         self.backend.worker_completions(handle, kind, prefix)
     }
 
-    pub(crate) fn replace_workspace_access_token(
-        &self,
-        handle: &WorkerExecutionHandle,
-        access_token: String,
-    ) -> WorkerExecutionResult {
-        self.backend
-            .replace_workspace_access_token(handle, access_token)
-    }
-
     pub(crate) fn stop_worker(&self, handle: &WorkerExecutionHandle) -> WorkerExecutionResult {
         self.backend.stop_worker(handle)
     }