not run rustfmt on CI

Author: gnzlbg

.travis.yml

@@ -81,9 +81,6 @@ matrix:
     # QEMU based targets that compile in an emulator
     - env: TARGET=x86_64-unknown-freebsd
 
-    - name: "rustfmt"
-      install: rustup component add rustfmt-preview
-      script: cargo fmt --all -- --check
     - name: "Shellcheck"
       install: true
       script: