Remove rustfmt and cargo-fmt

Moved them to the rustfmt-bin repo

Author: nrc

Cargo.lock

@@ -1,9 +1,11 @@
 [workspace]
 members = [
-    "cargo-fmt",
     "git-rustfmt",
-    "rustfmt-bin",
     "rustfmt-config",
     "rustfmt-core",
     "rustfmt-format-diff",
 ]
+
+[patch.crates-io]
+rustfmt-config = { path = "rustfmt-config" }
+rustfmt-core = { path = "rustfmt-core" }

Cargo.toml

@@ -146,9 +146,7 @@ script:
 
 `cargo test` to run all tests.
 
-To run rustfmt after this, use `cargo run --bin rustfmt -- filename`. See the
-notes above on running rustfmt.
-
+To run Rustfmt, you'll need the binaries repo: https://github.com/rust-lang-nursery/rustfmt-bin
 
 ## Configuring Rustfmt