Move class id to nsMsgMimeCID.h

mailnews/mime/public/nsIMimeConverter.h

@@ -27,11 +27,6 @@
 #include "prtypes.h"
 #include "nsString.h"
 
-// {866A1E11-D0B9-11d2-B373-525400E2D63A}
-#define NS_MIME_CONVERTER_CID   \
-        { 0x866a1e11, 0xd0b9, 0x11d2,         \
-        { 0xb3, 0x73, 0x52, 0x54, 0x0, 0xe2, 0xd6, 0x3a } }
-
 // {C09EDB23-B7AF-11d2-B35E-525400E2D63A}
 #define NS_IMIME_CONVERTER_IID \
       { 0xfb953da, 0xd0b5, 0x11d2,   \