Remove unnecessary anonymous functions in defer statements

[chatton]

Summary

Throughout the codebase I've noticed several defer statements that are wrapped in an anonymous function, e.g. this one

	defer func() {
		telemetry.IncrCounter(1, "ibc", "connection", "open-try")
	}()

can be changed to

defer telemetry.IncrCounter(1, "ibc", "connection", "open-try")

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[GNaD13]

Hi sir @chatton, Can I take this issue?

[crodriguezvega]

Hi sir @chatton, Can I take this issue?

Yes, that would be lovely. Thank you!