Remove some unused cruft from the early days.

These lines were added in 2002...

src/build/libbe/app/Messenger.cpp

@@ -33,11 +33,6 @@
 #define OUT	printf
 
 
-enum {
-	NOT_IMPLEMENTED	= B_ERROR,
-};
-
-
 /*!	\brief Creates an unitialized BMessenger.
 */
 BMessenger::BMessenger()

src/kits/app/Messenger.cpp

@@ -38,10 +38,6 @@ using BPrivate::gDefaultTokens;
 using BPrivate::gLooperList;
 using BPrivate::BLooperList;
 
-enum {
-	NOT_IMPLEMENTED	= B_ERROR,
-};
-
 
 BMessenger::BMessenger()
 	:

src/kits/app/Roster.cpp

@@ -63,11 +63,6 @@ using namespace BPrivate;
 #endif
 
 
-enum {
-	NOT_IMPLEMENTED	= B_ERROR,
-};
-
-
 const BRoster* be_roster;
 
 

src/kits/storage/Mime.cpp

@@ -36,10 +36,6 @@
 
 using namespace BPrivate;
 
-enum {
-	NOT_IMPLEMENTED	= B_ERROR,
-};
-
 
 // Helper function that contacts the registrar for mime update calls
 status_t