refactor: e2e ibc test

[yaruwangway]

Problem

In e2e test, there are three categories of tests using hermes.

• ibc send test
• packet-forward-middleware (PFM) test
• bypass-min-fee test

Bymass-min-fee test is carried asynchronously:
hermes is not running, and packets are cleared manually, thus hermes can choose to pay fees or not by using different hermes configs.

ibc test and PFM are tested by synchronous transaction.

Therefore in the present e2e test setup, there are two hermes instances.

However, ibc tests and PFM test can be done by asynchronously transaction, and this can simplify the test setup into one hermes instances for asynchronous transactions.

Closing criteria

refactor two hermes instances setup into one in e2e test.

Problem details