Revert "Edition 2018 hit stable 🙌"

This reverts commit b5b0f7e97abe0dbd5b54a1fc69e764a124c271b2.

1 files changed, 0 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 1dc00d0..d04896d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,6 @@ repository = "https://github.com/vhdirk/notmuch-rs"
 description = "Rust interface and bindings for notmuch"
 license = "GPL-3.0+"
 readme = "README.md"
-edition = "2018"
 
 [badges]
 travis-ci = { repository = "vhdirk/notmuch-rs" }