Delete CODE_STYLE.md

CODE_STYLE.md

@@ -1,99 +0,0 @@
-# Code style
-
-smoltcp does not follow the rustfmt code style because whitequark (the original
-author of smoltcp) finds automated formatters annoying and impairing readability
-just as much as improving it in different cases.
-
-In general, format the things like the existing code and it'll be alright.
-Here are a few things to watch out for, though:
-
-## Ordering use statements
-
-Use statements should be separated into two sections, uses from other crates and uses
-from the current crate. The latter would ideally be sorted from most general
-to most specific, but it's not very important.
-
-```rust
-use core::cell::RefCell;
-
-use crate::{Error, Result};
-use crate::phy::{self, DeviceCapabilities, Device};
-```
-
-## Wrapping function calls
-
-Avoid rightwards drift. This is fine:
-
-```rust
-assert_eq!(iface.inner.process_ethernet(&mut socket_set, 0, frame.into_inner()),
-           Ok(Packet::None));
-```
-
-This is also fine:
-
-```rust
-assert_eq!(iface.inner.lookup_hardware_addr(MockTxToken, 0,
-    &IpAddress::Ipv4(Ipv4Address([0x7f, 0x00, 0x00, 0x01])),
-    &IpAddress::Ipv4(remote_ip_addr)),
-    Ok((remote_hw_addr, MockTxToken)));
-```
-
-This is not:
-
-```rust
-assert_eq!(iface.inner.lookup_hardware_addr(MockTxToken, 0,
-                                            &IpAddress::Ipv4(Ipv4Address([0x7f, 0x00, 0x00, 0x01])),
-                                            &IpAddress::Ipv4(remote_ip_addr)),
-    Ok((remote_hw_addr, MockTxToken)));
-```
-
-## Wrapping function prototypes
-
-A function declaration might be wrapped...
-
-  * right after `,`,
-  * right after `>`,
-  * right after `)`,
-  * right after `->`,
-  * right before and after `where`.
-
-Here's an artificial example, wrapped at 50 columns:
-
-```rust
-fn dispatch_ethernet<Tx, F>
-                    (&mut self, tx_token: Tx,
-                     timestamp: u64, f: F) ->
-                    Result<()>
-    where Tx: TxToken,
-          F: FnOnce(EthernetFrame<&mut [u8]>)
-{
-    // ...
-}
-```
-
-## Visually aligning tokens
-
-This is fine:
-
-```rust
-struct State {
-    rng_seed:    u32,
-    refilled_at: u64,
-    tx_bucket:   u64,
-    rx_bucket:   u64,
-}
-```
-
-This is also fine:
-
-```rust
-struct State {
-    rng_seed: u32,
-    refilled_at: u64,
-    tx_bucket: u64,
-    rx_bucket: u64,
-}
-```
-
-It's OK to change between those if you touch that code anyway,
-but avoid reformatting just for the sake of it.