Merge pull request #1331 from emeroad/#1322_1.1.3_Multiple_transforms_support

prevent memory leak, When retransform fail

profiler/src/main/java/com/navercorp/pinpoint/profiler/ClassFileRetransformer.java

@@ -56,6 +56,7 @@ public class ClassFileRetransformer implements ClassFileTransformer {
         try {
             instrumentation.retransformClasses(target);
         } catch (UnmodifiableClassException e) {
+            targets.remove(target);
             throw new ProfilerException(e);
         }
     }