neptune-ui: remove default appman config.yaml
neptune-ui: remove default appman config.yaml

Due to changes in neptune-ui the default QtApplicationManager
config.yaml is not needed to launch the service anymore.

Signed-off-by: Gordan Markuš <393f2ce93a698aae735a2b90097ddab3b3bbfa42@pelagicore.com>

GordanM/meta-pelux,Pelagicore/meta-pelux,Pelagicore/meta-pelux,GordanM/meta-pelux,Pelagicore/meta-pelux