remove ctag section

Author: andoriyu

src/building/suggested.md

@@ -71,33 +71,6 @@ Task] instead:
 
 [Build Task]: https://code.visualstudio.com/docs/editor/tasks
 
-## Configuring `ctags`
-
-One of the challenges with rustc is that the RLS can't handle it, since it's a
-bootstrapping compiler. This makes code navigation difficult. One solution is to
-use `ctags`.
-
-`ctags` has a long history and several variants. Exuberant Ctags seems to be
-quite commonly distributed but it does not have out-of-box Rust support. Some
-distributions seem to use [Universal Ctags][utags], which is a maintained fork
-and does have built-in Rust support.
-
-The following script can be used to set up Exuberant Ctags:
-[https://github.com/nikomatsakis/rust-etags][etags].
-
-`ctags` integrates into emacs and vim quite easily. The following can then be
-used to build and generate tags:
-
-```console
-$ rust-ctags src/lib* && ./x.py build <something>
-```
-
-This allows you to do "jump-to-def" with whatever functions were around when
-you last built, which is ridiculously useful.
-
-[etags]: https://github.com/nikomatsakis/rust-etags
-[utags]: https://github.com/universal-ctags/ctags
-
 ## Check, check, and check again
 
 When doing simple refactorings, it can be useful to run `./x.py check`