Revert "Improve dedent behavior, make kill_to_line_end behave like emacs (#1173)"

1. pressing o on a line with no indentation will open a new line as
   expected, but esc will then delete the line altogether

2. the kill_line behavior happens after insert mode changes are already
   commited to history, and the change isn't commited. pressing u after
   this will break highlighting & undo history

This reverts commit c08d2fae587a0a5dd2a1e2e44a1f385d142c9d59.

1 files changed, 0 insertions, 13 deletions

diff --git a/helix-term/src/ui/editor.rs b/helix-term/src/ui/editor.rs
index a4fbca99..e1a6d178 100644
--- a/helix-term/src/ui/editor.rs
+++ b/helix-term/src/ui/editor.rs
@@ -1026,19 +1026,6 @@ impl Component for EditorView {
                     (Mode::Insert, Mode::Normal) => {
                         // if exiting insert mode, remove completion
                         self.completion = None;
-
-                        let last_cmd = self.last_insert.0.fun();
-                        const OPEN_BELOW_FUN: fn(&mut commands::Context) = commands::open_below;
-                        const OPEN_ABOVE_FUN: fn(&mut commands::Context) = commands::open_above;
-                        // For user friendly,
-                        // Remove whitespaces if we go from insert mode(through open below/above) to normal mode without any keys in between.
-                        // Example: `o<esc>`.
-                        if matches!(last_cmd, OPEN_BELOW_FUN | OPEN_ABOVE_FUN)
-                            && self.last_insert.1.len() == 1
-                        {
-                            commands::Command::goto_line_start.execute(&mut cxt);
-                            commands::Command::kill_to_line_end.execute(&mut cxt);
-                        }
                     }
                     _ => (),
                 }