mov get_execute to Elf ctor

inject/process.cpp

@@ -52,8 +52,7 @@ std::string Process::get_execute()
 
 std::size_t Process::get_entry()
 {
-    auto execute = get_execute();
-    Elf elf(execute);
+    Elf elf(get_execute());
     elf.set_base(get_base());
     return elf.get_entry();
 }