ServiceStartTimeout is defined at e2e core framework and the one of the core is used at many places, but the one of this endpoints/ports.go is not used at the other places. So this removes the one of endpoints/ports.go for the cleanup.
This makes sub packages of e2e test framework to use log functions of core framework instead for avoiding circular dependencies.
Signed-off-by: Jiatong Wang <wangjiatong@vmware.com>