Revert tab completion changes (#2929)

* Undo tab completion changes

* Remove extra newline

crates/nu-cli/src/shell/helper.rs

@@ -51,27 +51,7 @@ impl rustyline::completion::Completer for Helper {
     }
 
     fn update(&self, line: &mut rustyline::line_buffer::LineBuffer, start: usize, elected: &str) {
-        let end = start
+        let end = line.pos();
-            + match line
-                .as_str()
-                .chars()
-                .into_iter()
-                .skip(start)
-                .zip(elected.chars().into_iter())
-                .enumerate()
-                .find(|(_, (line, replace))| line != replace)
-            {
-                Some((index, (_, _))) => index,
-                None => line.pos(),
-            };
-
-        let mut end = end.max(line.pos());
-
-        let remaining = &line.as_str()[end..];
-        if remaining.starts_with('"') {
-            end += 1;
-        }
-
         line.replace(start..end, elected)
     }
 }
@@ -172,6 +152,7 @@ mod tests {
     use rustyline::completion::Completer;
     use rustyline::line_buffer::LineBuffer;
 
+    #[ignore]
     #[test]
     fn closing_quote_should_replaced() {
         let text = "cd \"folder with spaces\\subdirectory\\\"";
@@ -191,6 +172,7 @@ mod tests {
         );
     }
 
+    #[ignore]
     #[test]
     fn replacement_with_cursor_in_text() {
         let text = "cd \"folder with spaces\\subdirectory\\\"";