revert adding subrepos

.zprezto/_.git/config

@@ -1,25 +0,0 @@
-[core]
-	repositoryformatversion = 0
-	filemode = true
-	bare = false
-	logallrefupdates = true
-	ignorecase = true
-	precomposeunicode = true
-[remote "origin"]
-	url = https://github.com/sorin-ionescu/prezto.git
-	fetch = +refs/heads/*:refs/remotes/origin/*
-[branch "master"]
-	remote = origin
-	merge = refs/heads/master
-[submodule "modules/completion/external"]
-	url = https://github.com/zsh-users/zsh-completions.git
-[submodule "modules/history-substring-search/external"]
-	url = https://github.com/zsh-users/zsh-history-substring-search.git
-[submodule "modules/prompt/external/agnoster"]
-	url = https://gist.github.com/3712874.git
-[submodule "modules/prompt/external/powerline"]
-	url = https://github.com/davidjrice/prezto_powerline.git
-[submodule "modules/prompt/functions/pure"]
-	url = https://github.com/sindresorhus/pure.git
-[submodule "modules/syntax-highlighting/external"]
-	url = https://github.com/zsh-users/zsh-syntax-highlighting.git