fix travis.yml

.travis.yml

@@ -1,20 +1,7 @@
 language: go
-git:
-    submodules: false
-before_install:
-  - sed -i.bak 's/git@github.com:/https:\/\/github.com\//' .gitmodules
-  - git submodule update --init
-  - sed -i.bak 's/git@github.com:/https:\/\/github.com\//' sigchain/.gitmodules
-  - git submodule update --init --recursive
 before_script:
   - curl https://sh.rustup.rs -sSf | sh -s -- -y
   - export PATH=$PATH:$HOME/.cargo/bin/
-
-  - curl -L https://github.com/koute/cargo-web/releases/download/0.6.10/cargo-web-x86_64-unknown-linux-gnu.gz | gzip -d > cargo-web
-  - chmod +x cargo-web
-  - mkdir -p ~/.cargo/bin
-  - mv cargo-web ~/.cargo/bin
-
 go:
   - stable
 script: