Remove Temporary Code for Non-NGN Institutions from VerifyAccount Controller

[OnahProsperity]

User Story
As a developer, I want to remove the temporary code for non-NGN institutions from the VerifyAccount controller so that the application can handle all institutions uniformly.

Acceptance Criteria
GIVEN the VerifyAccount controller,
WHEN the temporary code for non-NGN institutions is removed,
THEN the controller should handle all institutions uniformly without bypassing the verification logic for non-NGN institutions.

GIVEN the VerifyAccount controller,
WHEN queried with a non-NGN institution,
THEN the account verification logic should be applied, and the account should be verified with external providers.

Tech Details
Remove the following block of code from the VerifyAccount controller in index.go:

// TODO: Remove this after testing non-NGN institutions
if institution.Edges.FiatCurrency.Code != "NGN" {
    u.APIResponse(ctx, http.StatusOK, "success", "Account name was fetched successfully", "OK")
    return
}

Ensure that the account verification logic is applied to all institutions, regardless of their currency.

[Supa-mega]

Can I take care of this issue?

[ussyalfaks]

Can I attempt this issue?