Remove deleting /nodes directory

mcp-virtual-lab and mcp-baremetal-lab repos don't contain
the /nodes/ directory anymore, so it is not needed here.

This allows to use pre-defined cfg01 node in _generated/

Change-Id: I91cb56cb38854572c2d31d4d44dd5e7c6b6a269b
diff --git a/tcp_tests/templates/shared-salt.yaml b/tcp_tests/templates/shared-salt.yaml
index 0cd2483..60da5d8 100644
--- a/tcp_tests/templates/shared-salt.yaml
+++ b/tcp_tests/templates/shared-salt.yaml
@@ -177,7 +177,6 @@
     {%- endif %}
     popd;
     mkdir -p /srv/salt/reclass/classes/service;
-    rm -rf /srv/salt/reclass/nodes/  # For backward compatibility. New cfg node will be regenerated here
     mkdir -p /srv/salt/reclass/nodes/_generated/;
 
     # Replace firstly to an intermediate value to avoid intersection between
@@ -268,7 +267,6 @@
     mkdir -p /srv/salt/reclass/classes/cluster/
     mkdir -p /srv/salt/reclass/classes/system/
     mkdir -p /srv/salt/reclass/classes/service/
-    rm -rf /srv/salt/reclass/nodes/  # For backward compatibility. New cfg node will be regenerated here
     mkdir -p /srv/salt/reclass/nodes/_generated
 
     # Override some context parameters