Remove 'GUARDED_BY(NetEventsInterface::g_msgproc_mutex)' to avoid gitian build failures

(cherry picked from commit 953811f77a)

src/net_processing.cpp

@@ -480,9 +480,9 @@ struct Peer {
 
     /** Number of addresses that can be processed from this peer. Start at 1 to
      *  permit self-announcement. */
-    double m_addr_token_bucket GUARDED_BY(NetEventsInterface::g_msgproc_mutex){1.0};
+    double m_addr_token_bucket{1.0};
     /** When m_addr_token_bucket was last updated */
-    std::chrono::microseconds m_addr_token_timestamp GUARDED_BY(NetEventsInterface::g_msgproc_mutex){GetTime<std::chrono::microseconds>()};
+    std::chrono::microseconds m_addr_token_timestamp{GetTime<std::chrono::microseconds>()};
     /** Total number of addresses that were dropped due to rate limiting. */
     std::atomic<uint64_t> m_addr_rate_limited{0};
     /** Total number of addresses that were processed (excludes rate-limited ones). */