message: Removing is_value from types/src/write_set.rs
  Unused + untested code
  Closes:
  Approved by: bothra90
diff: @@ -18,14 +18,6 @@ pub enum WriteOp {
  }
  impl WriteOp {
  - #[inline]
  - pub fn is_value(&self) -> bool {
  - match self {
  - WriteOp::Value(_) => true,
  - WriteOp::Deletion => false,
  - }
  - }
  -
  #[inline]
  pub fn is_deletion(&self) -> bool {
  match self {
  