cull trimRange (#1898)

It is unused. I believe that it also contains a latent bug,
when the range contains entirely whitespace.

Noticed during discussion at


#1854 (comment)



## Checklist

- [-] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [-] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [-] I have not broken the cheatsheet

---------

Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

packages/cursorless-engine/src/util/rangeUtils.ts

@@ -1,5 +1,4 @@
 import { Position, Range, TextEditor } from "@cursorless/common";
-import { getLeadingWhitespace, getTrailingWhitespace } from "./regex";
 
 export function isAtEndOfLine(editor: TextEditor, position: Position) {
   const endLine = editor.document.lineAt(position);
@@ -54,30 +53,3 @@ export function strictlyContains(
       : [rangeOrPosition.start, rangeOrPosition.end];
   return range1.start.isBefore(start) && range1.end.isAfter(end);
 }
-
-/**
- * Trim the given range of whitespaces
- * @param editor The editor to get the text from
- * @param range The range to trim
- */
-export function trimRange(editor: TextEditor, range: Range): Range {
-  const text = editor.document.getText(range);
-  const leadingWhitespace = getLeadingWhitespace(text);
-  const trailingWhitespace = getTrailingWhitespace(text);
-
-  if (leadingWhitespace === "" && trailingWhitespace === "") {
-    return range;
-  }
-
-  const startOffset =
-    editor.document.offsetAt(range.start) + leadingWhitespace.length;
-  return new Range(
-    editor.document.positionAt(startOffset),
-    editor.document.positionAt(
-      startOffset +
-        text.length -
-        leadingWhitespace.length -
-        trailingWhitespace.length,
-    ),
-  );
-}