AMBARI-25883: init function of InitializerModule called twice

[rzuo]

init function of InitializerModule is called twice.

The first call is within constructor of InitializerModule, the second call is main() in main.py.

As the comments said, the second call is to see exceptions/errors of initialization.

init data, once loggers are setup to see exceptions/errors of initialization. initializer_module.init()

This issue is to fix it, and make InitializerModule.init() call only once.

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(Please fill in changes proposed in this fix)

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