Revert "feat(tui): delete current session (#39750)"

This reverts commit 7814568ba0.

packages/tui/src/routes/session/index.tsx

@@ -51,7 +51,6 @@ import { useClient } from "../../context/client"
 import { useEditorContext } from "../../context/editor"
 import { openEditor } from "../../editor"
 import { useDialog } from "../../ui/dialog"
-import { DialogConfirm } from "../../ui/dialog-confirm"
 import { DialogSessionRename } from "../../component/dialog-session-rename"
 import { DialogMessage } from "./dialog-message"
 import { DialogFork } from "./dialog-fork"
@@ -523,32 +522,6 @@ export function Session() {
       slash: { name: "rename" },
       run: () => DialogSessionRename.show(dialog, route.sessionID, session()?.title),
     },
-    {
-      title: "Delete session",
-      id: "session.delete",
-      group: "Session",
-      slash: { name: "delete" },
-      run: async () => {
-        const current = session()
-        if (!current) return
-        const confirmed = await DialogConfirm.show(
-          dialog,
-          "Delete Session",
-          `Delete "${current.title}"? This action cannot be undone.`,
-        )
-        if (confirmed !== true) return
-        const error = await client.api.session.remove({ sessionID: route.sessionID }).then(
-          () => undefined,
-          (error) => error,
-        )
-        if (!error) return
-        toast.show({
-          message: `Failed to delete session: ${errorMessage(error)}`,
-          variant: "error",
-          duration: 5000,
-        })
-      },
-    },
     {
       title: "Jump to message",
       id: "session.timeline",