Move move .emacs.d out of configs/shared

Moving all of my Emacs-related files into their own directory at the root of
this repository.

configs/shared/.emacs.d/snippets/rjsx-mode/react-class-component

@@ -1,11 +0,0 @@
-# -*- mode: snippet -*-
-# name: React class extends
-# key: clz
-# --
-class $1 extends React.Component {
-  render() {
-    $2
-  }
-}
-
-export default $1