[vim] remove unused editorconfig plugin
diff --git a/.gitmodules b/.gitmodules
index 9f690657..bf57c690 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -109,9 +109,6 @@
[submodule ".vim/pack/alpha/start/typescript-vim"]
path = .vim/pack/alpha/start/typescript-vim
url = https://github.com/leafgarland/typescript-vim.git
-[submodule ".vim/pack/alpha/start/editorconfig-vim"]
- path = .vim/pack/alpha/start/editorconfig-vim
- url = https://github.com/editorconfig/editorconfig-vim.git
[submodule ".vim/pack/alpha/start/vimwiki"]
path = .vim/pack/alpha/start/vimwiki
url = https://github.com/vimwiki/vimwiki.git
diff --git a/.vim/pack/alpha/start/editorconfig-vim b/.vim/pack/alpha/start/editorconfig-vim
deleted file mode 160000
index c718cefc..00000000
--- a/.vim/pack/alpha/start/editorconfig-vim
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit c718cefc51ccdaf7bd27c4c1ae2de55103434241