Revert "gpio: gpiolib-of: Allow compile testing"

This reverts commit 1e4a80640338924b9f9fd7a121ac31d08134410a.

This creates more problems than it solves right now. Compile
testing needs to go in with patches fixing the problems it
uncovers.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index cebcb40..536112f 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -49,7 +49,7 @@
 
 config OF_GPIO
 	def_bool y
-	depends on OF || COMPILE_TEST
+	depends on OF
 
 config GPIO_ACPI
 	def_bool y