file_sys: Replace includes with forward declarations where applicable

Cuts down on include dependencies, resulting in less files that need to
be rebuilt when certain things are changed.

1 files changed, 5 insertions, 4 deletions

diff --git a/src/core/crypto/key_manager.h b/src/core/crypto/key_manager.h
index 7ca3e6cbc..bf51bf31f 100644
--- a/src/core/crypto/key_manager.h
+++ b/src/core/crypto/key_manager.h
@@ -6,13 +6,14 @@
 
 #include <array>
 #include <string>
-#include <string_view>
-#include <type_traits>
-#include <vector>
 #include <boost/container/flat_map.hpp>
+#include <boost/optional.hpp>
 #include <fmt/format.h>
 #include "common/common_types.h"
-#include "core/loader/loader.h"
+
+namespace Loader {
+enum class ResultStatus : u16;
+}
 
 namespace Core::Crypto {