Merge rust-bitcoin/rust-bitcoin#1048: Removed edition change heads up from CONTRIBUTING

7743be0 Removed edition change heads up from CONTRIBUTING (Martin Habovštiak)

Pull request description:

  It is done.

ACKs for top commit:
  apoelstra:
    ACK 7743be0
  sanket1729:
    ACK 7743be0

Tree-SHA512: 9cc63a97d959061db1b04757fbf993a5f2cf0e1fff388b23a8729995bf764aced18b3ef49ec25a5a324d8e49168b9e841baf2118f0769fc8689f46c3d9b3463c

Author: ChallengeDev210

CONTRIBUTING.md

@@ -1,11 +1,5 @@
 # Contributing to rust-bitcoin
 
-**Heads up about upcoming edition change**
-
-We're currently preparing to bump MSRV and **change the edition to 2018**.
-To minimize the churn we recommend you to submit your local WIP changes ASAP.
-There will be a lot of rebasing after the edition change.
-
 :+1::tada: First off, thanks for taking the time to contribute! :tada::+1:
 
 The following is a set of guidelines for contributing to Rust Bitcoin