Fix CONTRIBUTING.md: remove old instruction (#55)

Signed-off-by: Takeshi Yoneda <[email protected]>

Author: mathetake

CONTRIBUTING.md

@@ -124,9 +124,3 @@ You can add the sign off when creating the git commit via `git commit -s`.
 
 Or, you can sign off the whole PR via `git rebase --signoff main`.
 
-
-## Release
-
-In order to cut a new release tag and release the new version from the main branch, you should create a PR 
-where `GETMESH_LATEST_VERSION` in [install.sh](https://github.com/tetratelabs/getmesh/blob/main/site/install.sh) is updated to be the new release tag. 
-In this way, the `install.sh` would behave so that it would download the new version by default.

doc/en/community/contributing/_index.md

@@ -71,4 +71,3 @@ You can add the sign off when creating the git commit via `git commit -s`.
 
 Or, you can sign off the whole PR via `git rebase --signoff main`.
 
-

doc/en/community/release/_index.md

@@ -31,7 +31,6 @@ var (
 	}{
 		{path: filepath.Join(contributingPrefix, "/building-and-testing"), title: "Building and Testing", beginning: "## Building & Testing\n"},
 		{path: filepath.Join(contributingPrefix, "/contributing"), title: "Contributing to getmesh", beginning: "## Contributing\n"},
-		{path: filepath.Join(contributingPrefix, "/release"), title: "Release process", beginning: "## Release\n"},
 	}
 )