[otbn] Remove outdated comments
The "decode" and "operation" fields went away when we switched to
auto-generating the operation documentation from the ISS.
Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
diff --git a/hw/ip/otbn/data/insns.yml b/hw/ip/otbn/data/insns.yml
index f90faaf..2d5d3d4 100644
--- a/hw/ip/otbn/data/insns.yml
+++ b/hw/ip/otbn/data/insns.yml
@@ -49,10 +49,6 @@
#
# doc: Documentation for the instruction in markdown. (optional)
#
-# decode: Python pseudocode for decoding instruction objects (optional)
-#
-# operation: Python pseudocode for the operation of the instruction (optional)
-#
# note: Text that should appear in a callout banner at the top of the
# instruction documentation. (optional)
#
