Remove useBeta property from pom.xml (jenkinsci#1714)

* Remove useBeta property from pom.xml

* Bump jenkins.version to 2.495

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Co-authored-by: strangelookingnerd <strangelookingnerd@users.noreply.github.com>

Author: strangelookingnerd

pom.xml

@@ -38,11 +38,9 @@
     <hpi.bundledArtifacts />
     <hpi.strictBundledArtifacts>true</hpi.strictBundledArtifacts>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
-    <jenkins.baseline>2.492</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.3</jenkins.version>
+    <jenkins.baseline>2.504</jenkins.baseline>
+    <jenkins.version>${jenkins.baseline}.1</jenkins.version>
     <no-test-jar>false</no-test-jar>
-    <!-- Jenkins.MANAGE is still in Beta -->
-    <useBeta>true</useBeta>
     <!-- Do not run extra reporting for pmd -->
     <!-- https://stackoverflow.com/questions/12038238/unable-to-locate-source-xref-to-link-to -->
     <linkXRef>false</linkXRef>