doorlock.rst, vending-machine.rst: remove irrelevant 'cd' after 'git clone'

Signed-off-by: Grzegorz Gwozdz <grzegorz.gwozdz@huawei.com>

doorlock.rst

@@ -190,7 +190,6 @@ Get sources
 
       $ cd $CHECKOUT_DIR
       $ git clone --recursive https://gitlab.eclipse.org/eclipse/oniro-blueprints/doorlock/meta-oniro-blueprints-doorlock.git
-      $ cd meta-oniro-blueprints-doorlock
 
 .. note::
 

vending-machine.rst

@@ -149,7 +149,6 @@ clone `meta-oniro-blueprints-vending-machine <https://gitlab.eclipse.org/eclipse
 
       $ cd $CHECKOUT_DIR
       $ git clone --recursive https://gitlab.eclipse.org/eclipse/oniro-blueprints/vending-machine/meta-oniro-blueprints-vending-machine.git
-      $ cd meta-oniro-blueprints-gateway
 
 .. note::