--- a/packages/hal/powerpc/viper/current/include/plf_cache.h
+++ b/packages/hal/powerpc/viper/current/include/plf_cache.h
@@ -60,18 +60,5 @@
 // Initial cache enabling - controlled by common CDL
 
 //-----------------------------------------------------------------------------
-// FIXME: This definition forces the IO flash driver to use a
-// known-good procedure for fiddling flash before calling flash device
-// driver functions. The procedure breaks on other platform/driver
-// combinations though so is depricated. Hence this definition.
-//
-// If you work on this target, please try to remove this definition
-// and verify that the flash driver still works (both from RAM and
-// flash). If it does, remove the definition and this comment for good
-// [and the old macro definition if this happens to be the last client
-// of that code].
-#define HAL_FLASH_CACHES_OLD_MACROS
-
-//-----------------------------------------------------------------------------
 #endif // ifndef CYGONCE_PLF_CACHE_H
 // End of plf_cache.h