fix: remove reference to a deleted variable (#18532)

git merge for https://github.com/coder/coder/pull/18511 went wrong on
main.

codersdk/deployment.go

@@ -3380,7 +3380,6 @@ var ExperimentsKnown = Experiments{
 	ExperimentWebPush,
 	ExperimentWorkspacePrebuilds,
 	ExperimentAgenticChat,
-	ExperimentAITasks,
 }
 
 // ExperimentsSafe should include all experiments that are safe for

site/src/api/typesGenerated.ts

@@ -843,7 +843,6 @@ export type Experiment =
 	| "workspace-usage";
 
 export const Experiments: Experiment[] = [
-	"ai-tasks",
 	"agentic-chat",
 	"auto-fill-parameters",
 	"example",