Rename or remove AssumeTestGroupUtil.assumeElytronProfileEnabled()

AssumeTestGroupUtil.assumeElytronProfileEnabled() is misnamed because it throws AssumptionViolatedException if the -Delytron profile is used, i.e. if the condition stated in the method name is true. That's backwards and isn't how other methods like assumeSecurityManagerDisabled and assumeJDKVersionBefore/After work.

So either rename to assumeElytronProfileDisabled() to reflect how it's actually used, or remove it altogether because the whole -Delytron thing is cruft in WildFly main.