Removes some fixed TODOs

Author: dbosk

DataAuthenticity.tex

@@ -8,7 +8,7 @@
     of the event.
   \item\label{SpatiallyRelated} Prove that the data is spatially related to the 
     physical location of the event.
-\end{requirements} %TODO: A4 accurate/not fabricated?
+\end{requirements}
 \Cref{CreatedBeforeEnd,CreatedAfterStart} together bind the data to the time of 
 the event whereas \cref{SpatiallyRelated} binds the data spatially to the 
 event.

ProtestVerif.tex

@@ -98,8 +98,3 @@
 demonstration, where (some of) the other protesters act as witnesses, then the 
 \acp{LP} can be used to compute the participation count with all the 
 authenticity, verifiability and privacy requirements above.
-%TODO: reviewer: what about cellphones to count attendance
-% This is actually done in \cite{2016DemonstrationsInSeoul}, it requires some 
-% assumptions --- but they use wifi signals instead of the mobile network.
-% In either case, we pointed out that one wants the phone in flight mode due to
-% surveillance.

sybil.tex

@@ -22,7 +22,6 @@
 Fortunately, there are techniques that can mitigate the effects of the Sybil 
 attack without forcing us to use such a centralized identity system.
 We will return to these where relevant in the text.
-%TODO make sure we do
 
 %This is, however, less desirable in the scenario we consider here.
 %Fortunately, if we use techniques like \ac{MPC}, then we can overcome the