efi_loader: don't export efi_remove_all_protocols

This function is only used inside efi_boottime.c and is not safe to use
outside of this context.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 69d6d00..c70d977 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -651,8 +651,6 @@
 efi_status_t efi_remove_protocol(const efi_handle_t handle,
 				 const efi_guid_t *protocol,
 				 void *protocol_interface);
-/* Delete all protocols from a handle */
-efi_status_t efi_remove_all_protocols(const efi_handle_t handle);
 /* Install multiple protocol interfaces */
 efi_status_t EFIAPI
 efi_install_multiple_protocol_interfaces(efi_handle_t *handle, ...);