Adapt readme to the fact that the benchmarks in rust-lang/rust were removed (#36)

See rust-lang/rust#31274 for the pull request that removed them.

Author: crumblingstatue

README.md

@@ -1,25 +1,6 @@
 # The Computer Language Benchmarks Game: Rust implementations [![Build Status](https://travis-ci.org/TeXitoi/benchmarksgame-rs.svg?branch=master)](https://travis-ci.org/TeXitoi/benchmarksgame-rs)
 
 This is the version I propose to the [The Computer Language Benchmarks
-Game](http://benchmarksgame.alioth.debian.org/).  It is mainly [the
-official rust
-versions](https://github.com/rust-lang/rust/tree/master/src/test/bench)
-to which I made the following modifications to be published:
- - changing the header, as asked by the site (I have a dedicated
-   contributor line because I propose the program as asked by the
-   site);
- - removing the rust test framework specific code;
- - make it stable compliant (most of the time by adding crates);
- - possibly removing warnings or other **trivial** modifications.
+Game](http://benchmarksgame.alioth.debian.org/).
 
-If you want to contribute, please propose your version first to the
-official rust repository, and then propose a pull request here.
-
-There is some exceptions:
- - pidigits.  I have a special version that is not provided by the
-   rust repo because it depends on GMP.
- - mandelbrot and spectralnorm have specific version because of
-   `feature(simd)`.
- - regex-dna, see https://github.com/rust-lang/regex/blob/master/examples/shootout-regex-dna.rs
-
-You can propose directly a pull request here for these implementations if relevent.
+For regex-dna, first propose your change to https://github.com/rust-lang/regex/blob/master/examples/shootout-regex-dna.rs, the submit a pull request here.