delete field Server::_concurrency

src/brpc/server.cpp

@@ -382,10 +382,7 @@ Server::Server(ProfilerLinker)
     , _last_start_time(0)
     , _derivative_thread(INVALID_BTHREAD)
     , _keytable_pool(NULL)
-    , _cl(NULL)
-    , _concurrency(0) {
-    BAIDU_CASSERT(offsetof(Server, _concurrency) % 64 == 0,
-              Server_concurrency_must_be_aligned_by_cacheline);
+    , _cl(NULL) {
 }
 
 Server::~Server() {

src/brpc/server.h

@@ -660,7 +660,6 @@ friend class Controller;
     //        mechanism
     mutable bvar::Adder<int64_t> _nerror;
     ConcurrencyLimiter* _cl;
-    mutable int32_t BAIDU_CACHELINE_ALIGNMENT _concurrency;
 };
 
 // Get the data attached to current searching thread. The data is created by