PR471 Review: Removed redundant review hint.

Author: PaulLaux

src/circuit/circuit_vanilla.rs

@@ -2,8 +2,6 @@
 //!
 //! Includes the configuration, synthesis, and proof verification logic.
 
-// Review hint: this file is largely derived from src/circuit.rs
-
 use group::Curve;
 
 use pasta_curves::pallas;