Remove some dead makefile entries from toolkit-makefiles. r=me (no bug).

toolkit/toolkit-makefiles.sh

@@ -266,7 +266,6 @@ MAKEFILES_content="
   content/xslt/src/xml/Makefile
   content/xslt/src/xpath/Makefile
   content/xslt/src/xslt/Makefile
-  content/xslt/src/main/Makefile
 "
 
 MAKEFILES_layout="
@@ -682,7 +681,6 @@ MAKEFILES_jsreflect="
 MAKEFILES_jsductwork="
   js/ductwork/Makefile
   js/ductwork/debugger/Makefile
-  js/ductwork/debugger/tests/Makefile
 "
 
 MAKEFILES_libpr0n="