-B not supported in M1, so it's dangerous too do it automatically.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@3735 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/tasks/Maven.java

@@ -140,7 +140,6 @@ public class Maven extends Builder {
                 args.add(exec.getPath());
             }
             args.addKeyValuePairs("-D",build.getBuildVariables());
-            args.add("-B");
             args.addTokenized(normalizedTarget);
 
             Map<String,String> env = build.getEnvVars();