tprintf: minor: do some minor cleanups

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
mtrand: remove it and replace with simpler, generic code

Where not necessary:
	- rand()
Where necessary (TODO):
	- use Linux /dev/urandom

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
curve: cleanup curve routines

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
patricia, trie: minor: do some cleanups

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
xio: add nacl's randombyte function

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
dissector: remove redundant code

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>