Merge "libbinder: remove unused ProcessState mRootDir" am: 6261acfb3e am: faeba1de3e

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1664724

Change-Id: I290c763cac61fc6d328a2b539a1d32c96559f446
diff --git a/libs/binder/include/binder/ProcessState.h b/libs/binder/include/binder/ProcessState.h
index 2405ab6..ca29440 100644
--- a/libs/binder/include/binder/ProcessState.h
+++ b/libs/binder/include/binder/ProcessState.h
@@ -124,7 +124,6 @@
 
             Vector<handle_entry>mHandleToObject;
 
-            String8             mRootDir;
             bool                mThreadPoolStarted;
     volatile int32_t            mThreadPoolSeq;