Fix build errors

Signed-off-by: JCW <a1q123456@users.noreply.github.com>

include/xrpl/core/StartUpType.h

@@ -1,5 +1,4 @@
-#ifndef XRPL_STARTUPTYPE_H
-#define XRPL_STARTUPTYPE_H
+#pragma once
 
 #include <iosfwd>
 #include <type_traits>
@@ -15,5 +14,3 @@ operator<<(std::ostream& os, StartUpType const& type)
 }
 
 }  // namespace xrpl
-
-#endif  // XRPL_STARTUPTYPE_H

src/xrpld/app/main/Application.h

@@ -112,8 +112,6 @@ public:
 public:
     Application();
 
-    virtual ~Application() = default;
-
     virtual bool
     setup(boost::program_options::variables_map const& options) = 0;
 
@@ -127,8 +125,6 @@ public:
     checkSigs() const = 0;
     virtual void
     checkSigs(bool) = 0;
-    virtual bool
-    isStopping() const = 0;
 
     //
     // ---
@@ -138,14 +134,9 @@ public:
     virtual std::uint64_t
     instanceID() const = 0;
 
-    virtual Logs&
-    logs() = 0;
     virtual Config&
     config() = 0;
 
-    virtual boost::asio::io_context&
-    getIOContext() = 0;
-
     virtual std::pair<PublicKey, SecretKey> const&
     nodeIdentity() = 0;
 
@@ -158,9 +149,6 @@ public:
     virtual bool
     serverOkay(std::string& reason) = 0;
 
-    virtual beast::Journal
-    journal(std::string const& name) = 0;
-
     /* Returns the number of file descriptors the application needs */
     virtual int
     fdRequired() const = 0;