lm: Move LM's class declaration into the cpp file

This isn't used directly outside of this translation unit, so we can
hide it from external use.

src/core/hle/service/lm/lm.cpp

@@ -4,10 +4,12 @@
 
 #include <sstream>
 #include <string>
+
 #include "common/logging/log.h"
 #include "core/hle/ipc_helpers.h"
-#include "core/hle/kernel/client_session.h"
 #include "core/hle/service/lm/lm.h"
+#include "core/hle/service/service.h"
+#include "core/memory.h"
 
 namespace Service::LM {
 
@@ -21,8 +23,6 @@ public:
         RegisterHandlers(functions);
     }
 
-    ~Logger() = default;
-
 private:
     struct MessageHeader {
         enum Flags : u32_le {
@@ -163,30 +163,33 @@ private:
     std::ostringstream log_stream;
 };
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
-    std::make_shared<LM>()->InstallAsService(service_manager);
-}
+class LM final : public ServiceFramework<LM> {
+public:
+    explicit LM() : ServiceFramework{"lm"} {
+        static const FunctionInfo functions[] = {
+            {0x00000000, &LM::OpenLogger, "OpenLogger"},
+        };
+        RegisterHandlers(functions);
+    }
 
-/**
+    /**
      * LM::OpenLogger service function
      *  Inputs:
      *      0: 0x00000000
      *  Outputs:
      *      0: ResultCode
      */
-void LM::OpenLogger(Kernel::HLERequestContext& ctx) {
+    void OpenLogger(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<Logger>();
 
         LOG_DEBUG(Service_LM, "called");
-}
+    }
+};
 
-LM::LM() : ServiceFramework("lm") {
-    static const FunctionInfo functions[] = {
-        {0x00000000, &LM::OpenLogger, "OpenLogger"},
-    };
-    RegisterHandlers(functions);
+void InstallInterfaces(SM::ServiceManager& service_manager) {
+    std::make_shared<LM>()->InstallAsService(service_manager);
 }
 
 } // namespace Service::LM

src/core/hle/service/lm/lm.h

@@ -4,21 +4,12 @@
 
 #pragma once
 
-#include <vector>
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/service/service.h"
+namespace Service::SM {
+class ServiceManager;
+}
 
 namespace Service::LM {
 
-class LM final : public ServiceFramework<LM> {
-public:
-    LM();
-    ~LM() = default;
-
-private:
-    void OpenLogger(Kernel::HLERequestContext& ctx);
-};
-
 /// Registers all LM services with the specified service manager.
 void InstallInterfaces(SM::ServiceManager& service_manager);