src: fix macro duplicate declaration in env.h

Signed-off-by: gengjiawen <technicalcute@gmail.com>

PR-URL: #25703
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: gengjiawen

src/env.h

@@ -403,6 +403,7 @@ class IsolateData {
   PER_ISOLATE_SYMBOL_PROPERTIES(VY)
   PER_ISOLATE_STRING_PROPERTIES(VS)
 #undef V
+#undef VY
 #undef VS
 #undef VP
 
@@ -419,6 +420,7 @@ class IsolateData {
   PER_ISOLATE_SYMBOL_PROPERTIES(VY)
   PER_ISOLATE_STRING_PROPERTIES(VS)
 #undef V
+#undef VY
 #undef VS
 #undef VP