remove info about diag ice breakers; doesn't exist yet (#682)

src/ice-breaker/diagnostics.md

@@ -1,43 +0,0 @@
-# Diagnostics ICE-breakers
-
-**Github Label:** [A-diagnostics]
-
-[A-Diagnostics]: https://github.com/rust-lang/rust/labels/A-diagnostics
-
-The "Diagnostics ICE-breakers" are focused on bugs that center around the
-user visible compiler output. These bugs can fall under one of multiple topics:
-
-- [D-papercut]: Errors that needs small tweaks to archieve a good output.
-- [D-newcomer-roadblock]: Errors that are hard to understand for new users.
-- [D-confusing]: Errors that are hard to understand, regardless of experience
-level.
-- [D-invalid-suggestion]: Structured suggestions use heuristics to suggest
-valid code that captures the user's intent, but these heuristics can be wrong.
-This label aggregates cases where the heuristics don't account for some case.
-- [D-verbose]: Sometimes errors lean towards verbosity to try and increase
-understandability, but in practice the "wall of text" effect can be counter
-productive. Tickets labeled this way are about _removing_ output from existing
-errors.
-- [D-incorrect]: A diagnostic that is giving misleading or incorrect
-information. This might require creating a new, more targetted, error.
-- [D-inconsistent]: Inconsistency in formatting, grammar or style between
-diagnostic messages. This is usually related to capitalization or sentence
-tense.
-- [D-edition]: error that should account for edition differences, but doesn't.
-- [A-diagnostic-suggestions]: error that should have a structured suggestion,
-but don't.
-
-
-[D-papercut]: https://github.com/rust-lang/rust/labels/D-papercut
-[D-newcomer-roadblock]: https://github.com/rust-lang/rust/labels/D-newcomer-roadblock
-[D-confusing]: https://github.com/rust-lang/rust/labels/D-confusing
-[D-invalid-suggestion]: https://github.com/rust-lang/rust/labels/D-invalid-suggestion
-[D-verbose]: https://github.com/rust-lang/rust/labels/D-verbose
-[D-incorrect]: https://github.com/rust-lang/rust/labels/D-incorrect
-[D-inconsistent]: https://github.com/rust-lang/rust/labels/D-inconsistent
-[D-edition]: https://github.com/rust-lang/rust/labels/D-edition
-[A-diagnostic-suggestions]: https://github.com/rust-lang/rust/labels/A-diagnostic-suggestions
-
-For more information, visit the [diagnostics page].
-
-[diagnostics page]: ../diagnostics.md