Remove default insert mode movement bindings

Helix is first and foremost a modal editor. Willingness to support non-modal
editing is there, but it is not one that should be encouraged with the default
settings. There are an increasing number of users who are stumbling because
they are trying to use Helix as a non-modal editor, so this is an effort to
encourage new users to stop and take notice that Helix has a different paradigm
than VSCode, Sublime, etc. Users can still add these bindings back to their own
configs if they wish.

Author: dead10ck

helix-term/src/keymap/default.rs

@@ -355,25 +355,6 @@ pub fn default() -> HashMap<Mode, Keymap> {
         "A-del" => delete_word_forward,
         "C-s" => commit_undo_checkpoint,
 
-        "left" => move_char_left,
-        "C-b" => move_char_left,
-        "down" => move_line_down,
-        "up" => move_line_up,
-        "right" => move_char_right,
-        "C-f" => move_char_right,
-        "A-b" => move_prev_word_end,
-        "C-left" => move_prev_word_end,
-        "A-f" => move_next_word_start,
-        "C-right" => move_next_word_start,
-        "A-<" => goto_file_start,
-        "A->" => goto_file_end,
-        "pageup" => page_up,
-        "pagedown" => page_down,
-        "home" => goto_line_start,
-        "C-a" => goto_line_start,
-        "end" => goto_line_end_newline,
-        "C-e" => goto_line_end_newline,
-
         "C-k" => kill_to_line_end,
         "C-u" => kill_to_line_start,