Minor simplification

Dependencies

• [2] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [3] UBCBQ5FG Removing pijul/src/commands/checkout.rs (unused file), as well as litorg comments

Change contents

• edit in libpijul/src/diff/delete.rs at line 42
  [2.806573]→[2.806573:806635](∅→∅)
  − edges_del: Vec<crate::change::NewEdge<Option<ChangeId>>>,
• edit in libpijul/src/diff/delete.rs at line 68
  [2.807417]→[2.807417:807695](∅→∅),[2.807733]→[2.807733:807858](∅→∅)
  − if !deletion.edges_del.is_empty() {

  − self.rec.actions.push(Record::Edit {

  − change: Atom::EdgeMap(EdgeMap {

  − edges: deletion.edges_del,

  − inode: diff.inode,

  − }),

  − local: Local {

  − line: d[r].new,

  − path: diff.path.clone(),

  − },

  − })

  − }
• edit in libpijul/src/diff/delete.rs at line 95
  [2.808645]→[2.808645:808676](∅→∅)
  − edges_del: Vec::new(),
• replacement in libpijul/src/diff/delete.rs at line 158
  [2.810889]→[2.810889:810926](∅→∅)
  − let edge = change::NewEdge {
  [2.810684]

  [2.810926]
  + deletion.edges.push(change::NewEdge {
• replacement in libpijul/src/diff/delete.rs at line 168
  [2.811331]→[2.811331:811498](∅→∅)
  − };

  − if v.flag.contains(EdgeFlags::DELETED) {

  − deletion.edges_del.push(edge)

  − } else {

  − deletion.edges.push(edge)

  − }
  [2.811331]

  [2.811863]
  + })