Cast away an unused variable to play nice with -Wunused-but-set-variable.

PiperOrigin-RevId: 449351955
Change-Id: Id30280107bb29f7d715327b99a2c954809513a48
diff --git a/absl/base/internal/raw_logging.cc b/absl/base/internal/raw_logging.cc
index 8c49f9a..54e71a3 100644
--- a/absl/base/internal/raw_logging.cc
+++ b/absl/base/internal/raw_logging.cc
@@ -174,6 +174,7 @@
 #else
   static_cast<void>(format);
   static_cast<void>(ap);
+  static_cast<void>(enabled);
 #endif
 
   // Abort the process after logging a FATAL message, even if the output itself