message: doc: Remove incorrect INIT_PROTO_VERSION from nTime comment
diff: @@ -436,7 +436,7 @@ public:
  SerReadWriteMany(os, ser_action, ReadWriteAsHelper<CService>(obj));
  }
  - //! Always included in serialization, except in the network format on INIT_PROTO_VERSION.
  + //! Always included in serialization.
  uint32_t nTime{TIME_INIT};
  //! Serialized as uint64_t in V1, and as CompactSize in V2.
  ServiceFlags nServices{NODE_NONE};
  