builder: remove hob from autostart

hob has been removed so don't try and autostart it with the mini-x
session in the build appliance.

Remove the please_wait_dialog program which informed the user to
wait for Hob to start.

Rename the mini-x autostart file to reflect the removal of hob, we
now just start a matchbox-terminal with the environment configured.

(From OE-Core rev: cd43436def38a0a87f0cd330fa487ad5fc0748d0)

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/builder/files/builder_session.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+#This script will be called via mini X session on behalf of file owner, after
+#installed in /etc/mini_x/session.d/. Any auto start jobs including X apps can
+#be put here
+
+# start hob here
+export PSEUDO_PREFIX=/usr
+export PSEUDO_LOCALSTATEDIR=/home/builder/pseudo
+export PSEUDO_LIBDIR=/usr/lib/pseudo/lib64
+export GIT_PROXY_COMMAND=/home/builder/poky/scripts/oe-git-proxy
+
+#start pcmanfm in daemon mode to allow asynchronous launch
+pcmanfm -d&
+
+#register handlers for some file types
+if [ ! -d /home/builder/.local/share/applications ]; then
+    mkdir -p /home/builder/.local/share/applications/
+    #register folders to open with PCManFM filemanager
+    xdg-mime default pcmanfm.desktop inode/directory
+
+    #register html links and files with epiphany
+    xdg-mime default epiphany.desktop x-scheme-handler/http
+    xdg-mime default epiphany.desktop x-scheme-handler/https
+    xdg-mime default epiphany.desktop text/html
+
+    #register text files with leafpad text editor
+    xdg-mime default leafpad.desktop text/plain
+fi
+
+cd /home/builder/poky
+. ./oe-init-build-env
+
+matchbox-terminal&