prop. 144 minor cleanups

i2p2www/spec/proposals/144-ecies-x25519-aead-ratchet.rst

@@ -1974,9 +1974,6 @@ After the DH ratchet is complete for an inbound tagset, and a new inbound tagset
 the receiver should listen for tags in both tagsets, and delete the old tagset
 after a short time, about 3 minutes.
 
-Issues
-~~~~~~
-
 
 DH INITIALIZATION KDF
 ~~~~~~~~~~~~~~~~~~~~~~~
@@ -2024,8 +2021,6 @@ DH RATCHET KDF
 This is used after new DH keys are exchanged in NextKey blocks,
 before a tagset is exhausted.
 
-TODO
-
 .. raw:: html
 
   {% highlight lang='text' %}
@@ -2048,10 +2043,6 @@ TODO
 {% endhighlight %}
 
 
-Notes
-~~~~~
-
-
 
 4b) Session Tag Ratchet
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