Merge "libbinder: remove unused 'pool' var" am: 226376f9f6 am: 24eb9449e9

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1702011

Change-Id: Ic7174005df7809a7338fe7cf248d3fea9f657359
diff --git a/libs/binder/RpcServer.cpp b/libs/binder/RpcServer.cpp
index 51c770e..c0cdcd6 100644
--- a/libs/binder/RpcServer.cpp
+++ b/libs/binder/RpcServer.cpp
@@ -117,8 +117,6 @@
 
 void RpcServer::join() {
     LOG_ALWAYS_FATAL_IF(!mAgreedExperimental, "no!");
-
-    std::vector<std::thread> pool;
     {
         std::lock_guard<std::mutex> _l(mLock);
         LOG_ALWAYS_FATAL_IF(mServer.get() == -1, "RpcServer must be setup to join.");