GetNodeType on secondary will be timeout

Problem Statement/Rationale

What is going wrong?

GetNodeType on secondary will return a `selector server timeout` error

What action would you like the Engineering team to take?

GetNodeType on secondary success.

Steps to Reproduce

How could an engineer replicate the issue you’re reporting?

1. Make a master/slave ReplSet.
2. Down master node and only a slave node alived.
3. Connect server and GetNodeType like this: mongo-tools/command_test.go at master · Mrliu8023/mongo-tools (github.com)

Expected Results

What do you expect to happen?

return replset

Actual Results

What do you observe is happening?

selector server timeout

Additional Notes

Any additional information that may be useful to include.