finish landing nsIModule for compose

this and my last checkin r=sspizter
no bug, porkjockey work

mailnews/compose/public/nsIMsgDraft.idl

@@ -20,12 +20,6 @@
 
 interface nsIMessage;
 
-%{ C++
-#define NS_MSGDRAFT_CID \
-  { 0xa623746c, 0x453b, 0x11d3, \
-  { 0x8f, 0xf, 0x0, 0xa0, 0x24, 0xa7, 0xd1, 0x44 } }
-%}
-
 [scriptable, uuid(A6237474-453B-11d3-8F0F-00A024A7D144)]
 
 interface nsIMsgDraft : nsISupports