efi: remove some false dependencies on CONFIG_EFI_VARS

Remove some false dependencies on CONFIG_EFI_VARS, which only controls
the creation of the sysfs entries, whereas the underlying functionality
that these modules rely on is enabled unconditionally when CONFIG_EFI
is set.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

drivers/firmware/efi/Kconfig

@@ -137,7 +137,6 @@ config EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER
 
 config EFI_BOOTLOADER_CONTROL
 	tristate "EFI Bootloader Control"
-	depends on EFI_VARS
 	default n
 	help
 	  This module installs a reboot hook, such that if reboot() is
@@ -281,7 +280,7 @@ config EFI_EARLYCON
 
 config EFI_CUSTOM_SSDT_OVERLAYS
 	bool "Load custom ACPI SSDT overlay from an EFI variable"
-	depends on EFI_VARS && ACPI
+	depends on EFI && ACPI
 	default ACPI_TABLE_UPGRADE
 	help
 	  Allow loading of an ACPI SSDT overlay from an EFI variable specified