remove unnecessary unused internal export

Author: isaacs

src/diagnostics-channel-node.mts

@@ -2,7 +2,6 @@
 // this gets compiled to a require() commonjs-style override,
 // not using top level await on a conditional dynamic import
 import { tracingChannel, channel } from 'node:diagnostics_channel'
-export { tracingChannel, channel }
 import type { TracingChannel, Channel } from 'node:diagnostics_channel'
 export type { TracingChannel, Channel }
 export const metrics: Channel<unknown> = channel('lru-cache:metrics')

src/diagnostics-channel.ts

@@ -2,7 +2,6 @@
 // this gets compiled to a require() commonjs-style override,
 // not using top level await on a conditional dynamic import
 import { tracingChannel, channel } from 'node:diagnostics_channel'
-export { tracingChannel, channel }
 import type { TracingChannel, Channel } from 'node:diagnostics_channel'
 export type { TracingChannel, Channel }
 export const metrics: Channel<unknown> = channel('lru-cache:metrics')