rm not need

.travis.yml

@@ -17,7 +17,6 @@ addons:
       - golang
 before_install:
   -  pip install virtualenv pre-commit
-install:
   -  GOPATH=/tmp/go go get -u github.com/wangkuiyi/ipynb/markdown-to-ipynb
 script:
   - travis/precommit.sh

pre-commit-hooks/convert_markdown_into_ipynb.sh

 #!/bin/sh
-command -v go >/dev/null 2>&1
-if [ $? -ne 0 ]; then
-    echo >&2 "Please install https://golang.org/doc/install#install"
-    exit 1
-fi
-
-#convert to ipynb file
-#GOPATH=/tmp/go go get -u github.com/wangkuiyi/ipynb/markdown-to-ipynb
-
 for file in $@ ; do
 	/tmp/go/bin/markdown-to-ipynb < $file > ${file%.*}".ipynb"
     if [ $? -ne 0 ]; then