diff --git a/evm/src/main/java/org/hyperledger/besu/evm/UInt256.java b/evm/src/main/java/org/hyperledger/besu/evm/UInt256.java
index 672f0340d56..28e0bda14e6 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/UInt256.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/UInt256.java
@@ -709,7 +709,6 @@ public UInt256 shr(final UInt256 shift) {
    * @param fill value to prepend while shifting
    * @return the result
    */
-  // TODO: check perf - wiring shiftRight callers with this one
   private UInt256 sar0(final int shift, final long fill) {
     long w3 = u3, w2 = u2, w1 = u1, w0 = u0;
     if (shift == 256) {
@@ -781,7 +780,6 @@ public UInt256 shl(final UInt256 shift) {
    * @param shift number of bits to shift
    * @return the result
    */
-  // TODO: check perf - wiring shiftLeft callers with this one
   private UInt256 shl0(final int shift) {
     long w3 = u3, w2 = u2, w1 = u1, w0 = u0;
     if (shift == 256) {