Remove fixed Quarkus commit sha checkout workaround

Author: beikov

ci/quarkus.Jenkinsfile

@@ -48,9 +48,6 @@ pipeline {
 					}
 					dir('quarkus') {
 						sh "git clone -b 3.15 --single-branch https://github.com/quarkusio/quarkus.git . || git reset --hard && git clean -fx && git pull"
-						// This is a temporary workaround because Quarkus reverted the Hibernate ORM and Reactive upgrade.
-						// Remove this once Quarkus upgrades the versions again
-						sh "git reset --hard f42166ee7041ed09b7183d5dbf3ece2439b16676"
         				script {
 							def sedStatus = sh (script: "sed -i 's@<hibernate-orm.version>.*</hibernate-orm.version>@<hibernate-orm.version>${env.HIBERNATE_VERSION}</hibernate-orm.version>@' pom.xml", returnStatus: true)
 							if ( sedStatus != 0 ) {