test(smoketest): remove wildfly config defaults

[andrewazores]

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Related to cryostatio/cryostat-agent#486
Depends on cryostatio/cryostat-agent#523

Description of the change:

When the above bug fix is merged, the WildFly sample applications are able to correctly load the default application.properties configuration and so the explicit settings for them in the smoketest are no longer required.

Motivation for the change:

This change is helpful because users may want to...

How to manually test:

1. Run CRYOSTAT_IMAGE=quay.io... bash smoketest.bash...
2. ...

[github-actions]

This PR/issue depends on:

• fix(config): config classloader strategy for different attach scenarios cryostat-agent#523
  By Dependent Issues (🤖). Happy coding!