Remove mkfifo from the uncategorized list.

Bug: N/A
Test: builds
Change-Id: I98ff20888969b833c229a1c585f665865c085643
diff --git a/Android.mk b/Android.mk
index 275adbd..03a7f77 100644
--- a/Android.mk
+++ b/Android.mk
@@ -246,7 +246,7 @@
 LOCAL_MODULE := toybox
 
 # dupes: dd
-# useless?: freeramdisk fsfreeze install makedevs mkfifo nbd-client
+# useless?: freeramdisk fsfreeze install makedevs nbd-client
 #           partprobe pivot_root pwdx rev rfkill vconfig
 # prefer BSD netcat instead?: nc netcat
 # prefer efs2progs instead?: blkid chattr lsattr