Remove flag.Parse() from avisession.go

[dvirgilad]

Is your feature request related to a problem? Please describe.

Recently my team has been working on a crossplane provider for AVI, which uses the go SDK (through the terraform AVI provider). We ran into an issue with our flag parser whenever a flag was passed. We were not using the default flag package.
We traced the issue back to this function:

alb-sdk/go/session/avisession.go

Lines 306 to 309 in cc85715

	func NewAviSession(host string, username string, options ...func(*AviSession) error) (*AviSession, error) {
	if flag.Parsed() == false {
	flag.Parse()
	}

Describe the solution you'd like

For an SDK, I don't really understand why it should parse flags. Considering it cannot be built into an executable (AFAIK). Would like to hear others thoughts about this.
Cheers.

Describe alternatives you've considered

For the time being, my team has implemented a solution using the default flag package.

Additional context

No response