[from qiskit] Max Likelihood Amplitude Estimator applies post processing twice to the confidence interval

[ElePT]

Information

• Qiskit Terra version: 0.17.1
• Python version: 3.8.3
• Operating system: macOS 11.2.3

What is the current behavior?

The confidence_interval of the Max Likelihood Amplitude Estimator is already rescaled. The confidence_interval_processed is rescaled twice. This does not happen for example with the Iterative Amplitude Estimator

Steps to reproduce the problem

Run a Max Likelihood Amplitude Estimator with a post processing function

What is the expected behavior?

Have the confidence_interval not rescaled, and the confidence_interval_processed only rescaled once

Suggested solutions

I haven't seen where the bug is