DL-14600: Removal of TCSchemeInEligibilityMsgBuilder as it is no more…

[DivyaManimaran-hmrc]

#DL-14600 Remove unused code from childcare-calculator-frontend

Its looks like
TCSchemeInEligibilityMsgBuilder.scala in childcare-calculator-frontend is unused.

Checklist

• I've made every effort to commit high quality, clean code and I have executed relevant static analyses to be sure
• I've included appropriate tests with any code I've added (Unit, Integration, Acceptance etc.)
• I've executed the acceptance test pack locally to ensure there are no functional regressions
• I've added my code using logical, atomic commits, squashing as appropriate - including the JIRA issue number in the commit message
• I've run a dependency check to ensure all dependencies are up to date

[platops-pr-bot]

• Runtime issues may occur. Change org.playframework.sbt-plugin to 3.0.4 in project/plugins.sbt - to match what uk.gov.hmrc.bootstrap-frontend-play-30 uses