11835f7fcb
The rmtypedefs tool is inteded only for the Android build itself. It is given a set of .class file folders, and it finds any .class files within those folders that correspond to "typedef annotations": these are annotation classes that themselves have been annotated with @IntDef or @StringDef. These typedefs should all be using @Retention(RetentionPolicy.SOURCE), something this tool will check and report if not the case. However, even if an annotation only has source level retention, the annotation class *itself*, will still be created as a .class file. We don't want these annotations in the Android system image, so this tool is used to find and nuke the corresponding .class files for the annotations themselves. Change-Id: Ia343cc5bdbf215ded24b4354f3d92f5a9076eae3