refactor: remove Arch::hostname, use QSysInfo::machineHostName directly in the only place its used

src/lib/arch/Arch.cpp

@@ -8,8 +8,6 @@
 
 #include "arch/Arch.h"
 
-#include <QSysInfo>
-
 #include <thread>
 
 #if SYSAPI_WIN32
@@ -62,8 +60,3 @@ double Arch::time()
   auto uSecSinceEpoch = std::chrono::duration_cast<std::chrono::microseconds>(sinceEpoch).count();
   return double(uSecSinceEpoch / 1000000);
 }
-
-QString Arch::hostName()
-{
-  return QSysInfo::machineHostName();
-}

src/lib/arch/Arch.h

@@ -104,12 +104,6 @@ public:
    */
   static double time();
 
-  /**
-   * @brief hostName
-   * @return Return local host's name
-   */
-  static QString hostName();
-
 private:
   static Arch *s_instance;
 };

src/lib/deskflow/ArgParser.cpp

@@ -17,6 +17,7 @@
 #endif
 
 #include <QFileInfo>
+#include <QSysInfo>
 
 deskflow::ArgsBase *ArgParser::m_argsBase = nullptr;
 
@@ -332,7 +333,7 @@ std::string ArgParser::assembleCommand(
 
 void ArgParser::updateCommonArgs(const char *const *argv) const
 {
-  argsBase().m_name = ARCH->hostName().toStdString();
+  argsBase().m_name = QSysInfo::machineHostName().toStdString();
   argsBase().m_pname = QFileInfo(argv[0]).fileName().toLocal8Bit().constData();
 }