Allow to build any branch in release configuration.

Important to be able to implement nightlies with the release conf.

Signed-off-by: Igor Mandrigin <i@mandrigin.ru>

Jenkinsfile.release

@@ -31,10 +31,6 @@ timeout(90) {
         stage('Git & Dependencies') {
           slackSend color: 'good', message: BRANCH_NAME + ' build started. ' + env.BUILD_URL
 
-          if (!BRANCH_NAME.startsWith("release/")){
-            error "Wrong branch name format: " + BRANCH_NAME + ", but it should be `release/version`"
-          }
-
           checkout scm
 
           version = readFile("${env.WORKSPACE}/VERSION").trim()