Remove key-pair patch

It was only there as an example

patches/incubator-0001-Create-a-ssh-key-pair-if-non-exists.patch

@@ -1,27 +0,0 @@
-From 28fc030839d14a6e6b5a6b0e1ecce3b49f2cc37e Mon Sep 17 00:00:00 2001
-From: Derek Higgins <derekh@redhat.com>
-Date: Wed, 15 May 2013 12:01:46 +0100
-Subject: [PATCH] Create a ssh key-pair if non exists
-
----
- scripts/install-dependencies | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/scripts/install-dependencies b/scripts/install-dependencies
-index 354da1d..e35c65e 100755
---- a/scripts/install-dependencies
-+++ b/scripts/install-dependencies
-@@ -1,6 +1,10 @@
- #!/bin/bash
- set -eu
- 
-+if [ ! -e ~/.ssh/id_rsa.pub ] ; then
-+  ssh-keygen -N '' -f ~/.ssh/id_rsa
-+fi
-+
- # keys
- if ! grep "$(cat ~/.ssh/id_rsa.pub)" ~/.ssh/authorized_keys >/dev/null; then
-   cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
--- 
-1.8.1.4
-