Fix edit fail

Author: tmandry

src/doc/rustc/src/platform-support/fuchsia.md

@@ -939,4 +939,3 @@ attach and load any relevant debug symbols.
 [gdb]: https://www.sourceware.org/gdb/
 [the zxdb documentation]: https://fuchsia.dev/fuchsia-src/development/debugger
 [fdio]: https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/lib/fdio/
---