drivers/tty/serial/sh-sci.h: remove dead reference on ARCH_SH7372

The Kconfig option ARCH_SH7372 has been removed by commit 59b89af1
("ARM: shmobile: sh7372: Remove Legacy C SoC code").  This patch removes
the last reference on this Kconfig option.
Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/sh-sci.h

@@ -15,7 +15,6 @@
     defined(CONFIG_CPU_SUBTYPE_SH7720) || \
     defined(CONFIG_CPU_SUBTYPE_SH7721) || \
     defined(CONFIG_ARCH_SH73A0) || \
-    defined(CONFIG_ARCH_SH7372) || \
     defined(CONFIG_ARCH_R8A7740)
 
 # define SCxSR_RDxF_CLEAR(port)	 (serial_port_in(port, SCxSR) & 0xfffc)