sata_dwc_460ex: disable COMPILE_TEST again

Commit 84683a7e081f ("sata_dwc_460ex: enable COMPILE_TEST for the
driver") enabled this driver for non-ppc460-ex platforms, but it was
then disabled for ARM and ARM64 by commit 2de5a9c004e9 ("sata_dwc_460ex:
disable compilation on ARM and ARM64") because it's too noisy and
broken.

This disabled is entirely, because it's too noisy on x86-64 too, and
there's no point in disabling architectures one by one.  At a minimum,
the code isn't 64-bit clean, and even on 32-bit it is questionable
whether it makes sense.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index e7f338a..5f60155 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -269,7 +269,7 @@
 
 config SATA_DWC
 	tristate "DesignWare Cores SATA support"
-	depends on 460EX || (COMPILE_TEST && !(ARM || ARM64))
+	depends on 460EX
 	help
 	  This option enables support for the on-chip SATA controller of the
 	  AppliedMicro processor 460EX.