src: remove unused macro in env.cc

PR-URL: #26273
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: gengjiawen

src/env.cc

@@ -47,8 +47,6 @@ using v8::Undefined;
 using v8::Value;
 using worker::Worker;
 
-#define kTraceCategoryCount 1
-
 // TODO(@jasnell): Likely useful to move this to util or node_internal to
 // allow reuse. But since we're not reusing it yet...
 class TraceEventScope {