Remove the other options since its installed by default.

TravisCI.md

@@ -11,122 +11,3 @@ script:
 Note:
 >Travis CI has now integrated ShellCheck by default, so you don't need to manually install it.
 
-Thus the older suggestions below are no longer necessary.
-
-----
-contributor hugovk says:
-
->It took me a while to find a way to install on Travis CI, but thanks to this I got it working:
-
-```yaml
-language: bash
-
-addons:
-  apt:
-    sources:
-      - debian-sid    # Grab shellcheck from the Debian repo (o_O)
-    packages:
-      - shellcheck
-
-script:
-  - bash -c 'shopt -s globstar; shellcheck **/*.{sh,bash}'
-
-matrix:
-  fast_finish: true
-```
-
-**NOTE:** This solution may break if you install other packages from APT as well, refer [Errors were encountered while processing: /var/cache/apt/archives/locales_2.19-20_all.deb · Issue #4838 · travis-ci/travis-ci](https://github.com/travis-ci/travis-ci/issues/4838)
-
-***   
-
-   
-contributor ccztux says:
-
->This is how you can implement shellcheck on Travis CI using the latest docker image:
-
-```yaml
-sudo: required
-
-language: bash
-
-services:
-  - docker
-
-before_install:
-  - docker pull koalaman/shellcheck
-
-script:
-  - docker run -v $(pwd):/scripts koalaman/shellcheck /scripts/yourscript.sh
-
-matrix:
-  fast_finish: true
-```
-
-***
-
-contributor @Lin-Buo-Ren says:
-
-> Here's a Git submodule and Travis CI configuration that support build and install latest release of  ShellCheck without root access using Cabal  
-> http://github.com/Lin-Buo-Ren/Utilities-for-Travis-CI  
-> Also a cache is preserved to decrease subsequent build time
-
-```yaml
----
-language: bash
-sudo: false
-
-addons:
-  apt:
-    packages: 
-      - realpath # required by script
-      - cabal-install
-      - ghc
-
-install:
-  - ./"Build and Setup ShellCheck's Latest Release.bash" --without-root
-  - PATH="${HOME}/.cabal/bin:${PATH}"
-
-before_cache:
-  - rm $HOME/.cabal/logs/build.log
-
-cache:
-  directories:
-    - $HOME/.cabal
-```
-
-> Here's another Git submodule to check all Bash scripts in the repository excluding its submodules using ShellCheck:  
-> https://github.com/Lin-Buo-Ren/GNU-Bash-Automatic-Checking-Program-for-Git-Projects
-
-***
-
-contributor ntrrg says:
-
-> Using the binary (Linux x64) is pretty straightforward
-
-```yaml
-language: bash
-before_install:
-  - wget -c https://goo.gl/ZzKHFv -O - | tar -xvJ -C /tmp/
-  - PATH="/tmp/shellcheck-latest:$PATH"
-script: shellcheck */**/*.sh
-```
-
-> Makefiles can easily integrate it
-
-`Makefile`:
-
-```Makefile
-.PHONY: lint
-lint: /tmp/shellcheck-latest/shellcheck
-	$< */**/*.sh
-
-/tmp/shellcheck-latest/shellcheck:
-	wget -c 'https://goo.gl/ZzKHFv' -O - | tar -xvJ -C /tmp/
-```
-
-`.travis.yml`:
-
-```yaml
-language: bash
-script: make lint
-```