Remove unused Install error yaml file

Now using errors defined in Certs.errors.yaml. As the errors
are common for both Manager implementing Install interface and
Certificate class implementing Replace interface moved errors
from Install.errors.yaml to Certs.errors.yaml.

Change-Id: I553db57d4b55e977db7048d704c10d0f74b5365e
Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
2 files changed