Remove operators.md in favor of expressions/ (#1031)

docs/design/README.md

@@ -275,7 +275,7 @@ file, including `Int` and `Bool`. These will likely be defined in a special
 ### Expressions
 
 > References: [Lexical conventions](lexical_conventions) and
-> [operators](operators.md)
+> [expressions](expressions/)
 >
 > **TODO:** References need to be evolved.
 

docs/design/operators.md

@@ -1,25 +0,0 @@
-# Operators
-
-<!--
-Part of the Carbon Language project, under the Apache License v2.0 with LLVM
-Exceptions. See /LICENSE for license information.
-SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
--->
-
-<!-- toc -->
-
-## Table of contents
-
--   [TODO](#todo)
-
-<!-- tocstop -->
-
-## TODO
-
-This is a skeletal design, added to support [the overview](README.md). It should
-not be treated as accepted by the core team; rather, it is a placeholder until
-we have more time to examine this detail. Please feel welcome to rewrite and
-update as appropriate.
-
-See [proposals PR 168](https://github.com/carbon-language/carbon-lang/pull/168)
-for context -- that proposal may replace this.