debug_utils: Add using std::literals

- Remove using namespace literals where it explicitly includes
cryptonote_config. There's still duplicates but implicitly.

src/blocks/blocks.h

@@ -6,8 +6,6 @@
 namespace blocks
 {
 
-using namespace std::literals;
-
 template <cryptonote::network_type Network> std::string_view checkpoint_data() { return ""sv; }
 template<> std::string_view checkpoint_data<cryptonote::network_type::MAINNET>();
 template<> std::string_view checkpoint_data<cryptonote::network_type::DEVNET>();

src/cryptonote_config.h

@@ -39,6 +39,8 @@
 #include <array>
 #include <ratio>
 
+using namespace std::literals;
+
 #define CRYPTONOTE_MAX_BLOCK_NUMBER                     500000000
 #define CRYPTONOTE_MAX_TX_SIZE                          1000000
 #define CRYPTONOTE_MAX_TX_PER_BLOCK                     0x10000000
@@ -189,7 +191,6 @@ static_assert(STAKING_PORTIONS % 12 == 0, "Use a multiple of twelve, so that it
 // New constants are intended to go here
 namespace config
 {
-  using namespace std::literals;
 
   inline constexpr auto DNS_TIMEOUT = 20s;
   inline constexpr uint64_t DEFAULT_FEE_ATOMIC_XMR_PER_KB = 500; // Just a placeholder!  Change me!

src/cryptonote_protocol/quorumnet.cpp

@@ -49,7 +49,6 @@ namespace quorumnet {
 namespace {
 
 using namespace service_nodes;
-using namespace std::literals;
 using namespace lokimq;
 
 using blink_tx = cryptonote::blink_tx;

src/wallet/wallet_rpc_server.cpp

@@ -68,7 +68,6 @@ using namespace tools::wallet_rpc;
 
 namespace
 {
-  using namespace std::literals;
   constexpr auto DEFAULT_AUTO_REFRESH_PERIOD = 20s;
 
   const command_line::arg_descriptor<uint16_t, true> arg_rpc_bind_port = {"rpc-bind-port", "Sets bind port for server"};