[otbn] Remove outdated comment from RTL
The LFSR is now in otbn_rnd.sv, the placeholder is no longer needed.
Signed-off-by: Philipp Wagner <phw@lowrisc.org>
diff --git a/hw/ip/otbn/rtl/otbn.sv b/hw/ip/otbn/rtl/otbn.sv
index 160bc90..4cc5895 100644
--- a/hw/ip/otbn/rtl/otbn.sv
+++ b/hw/ip/otbn/rtl/otbn.sv
@@ -760,12 +760,6 @@
// The core can never signal a write to IMEM
assign imem_write_core = 1'b0;
- // LFSR ======================================================================
-
- // TODO: Potentially insert local LFSR, or use output from RNG distribution
- // network directly, depending on availability. Revisit once CSRNG interface
- // is known (#2638).
-
// Asserts ===================================================================
