drivers: input: Clean up ft5x46 touchscreen test module and dead code

* Modify point 1 to format the ft5x46 driver Kconfig file
  Modify point 2 to clean up the focaltech_test_(ft5x46/ft8716)
  Modify point 3 to clean up focaltech_test_(ft5x46/ft8716) code
  Modify point 4 to delete the ft5x46_ts_spi touchscreen register

(cherry picked from commit 8571d7a3ec9b684e4b3cce8455b86d38e8008dd5)
Change-Id: Ib76ad3ef496c791b9890cf259554c193da61906a

drivers/input/touchscreen/ft5x46/Kconfig

@@ -1,59 +1,46 @@
 config TOUCHSCREEN_FT5X46
-       tristate "FocalTech touchscreens"
-       depends on I2C
-       help
-         Say Y here if you have a FT5X46 touchscreen.
-	 Ft5x06 controllers are multi touch controllers which can
-	 report 5 touches at a time.
+	tristate "FocalTech touchscreens"
+	depends on I2C
+	help
+	  Say Y here if you have a FT5X46 touchscreen.
+	  Ft5x06 controllers are multi touch controllers which can
+	  report 5 touches at a time.
 
-         If unsure, say N.
+	  If unsure, say N.
 
-         To compile this driver as a module, choose M here: the
-         module will be called ft5x46_ts.
+	  To compile this driver as a module, choose M here: the
+	  module will be called ft5x46_ts.
 
 config TOUCHSCREEN_FT5X46_CALIBRATE
-        bool "calibrate after flash firmware"
-        depends on TOUCHSCREEN_FT5X46
-        default y
-        help
-          must turn off after all pre-production device get upgrade.
+	bool "calibrate after flash firmware"
+	depends on TOUCHSCREEN_FT5X46
+	default y
+	help
+	  must turn off after all pre-production device get upgrade.
 
 config TOUCHSCREEN_FT5X46_TYPEB
-        bool "use type B for touch report"
-        depends on TOUCHSCREEN_FT5X46
-        default y
-        help
-          enable typeB for multi-touch report.
+	bool "use type B for touch report"
+	depends on TOUCHSCREEN_FT5X46
+	default y
+	help
+	  enable typeB for multi-touch report.
 
 config TOUCHSCREEN_FT5X46_I2C
-        tristate "Focaltech FT5X0X I2C touchscreens"
-        depends on I2C
-        select TOUCHSCREEN_FT5X46
-        help
-          Say Y here if you have a Focaltech FT5X46 I2C touchscreen connected
-          to your system.
+	tristate "Focaltech FT5X0X I2C touchscreens"
+	depends on I2C
+	select TOUCHSCREEN_FT5X46
+	help
+	  Say Y here if you have a Focaltech FT5X46 I2C touchscreen connected
+	  to your system.
 
-          If unsure, say N.
+	  If unsure, say N.
 
-          To compile this driver as a set of modules, choose M here: the
-          modules will be called ft5x46_ts_i2c.
-
-config TOUCHSCREEN_FT5X46_SPI
-        tristate "Focaltech FT5X0X SPI touchscreens"
-        depends on SPI
-        select TOUCHSCREEN_FT5X46
-        help
-          Say Y here if you have a Focaltech FT5X46 SPI touchscreen connected
-          to your system.
-
-          If unsure, say N.
-
-          To compile this driver as a set of modules, choose M here: the
-          modules will be called ft5x46_ts_spi.
+	  To compile this driver as a set of modules, choose M here: the
+	  modules will be called ft5x46_ts_i2c.
 
 config TOUCHSCREEN_FT5X46P_PROXIMITY
-        bool "focaltech touch proximity enable"
-        depends on TOUCHSCREEN_FT5X46
-        default n
-        help
-          focaltech touch proximity enable.
+	bool "focaltech touch proximity enable"
+	depends on TOUCHSCREEN_FT5X46
+	default n
+	help
+	  focaltech touch proximity enable.

drivers/input/touchscreen/ft5x46/Makefile

@@ -2,6 +2,5 @@
 # Makefile for the FT5X46 touchscreen driver.
 #
 
-obj-$(CONFIG_TOUCHSCREEN_FT5X46)	+= ft5x46_ts.o focaltech_test.o focaltech_test_ft8716.o
+obj-$(CONFIG_TOUCHSCREEN_FT5X46)	+= ft5x46_ts.o
 obj-$(CONFIG_TOUCHSCREEN_FT5X46_I2C)	+= ft5x46_ts_i2c.o
-obj-$(CONFIG_TOUCHSCREEN_FT5X46_SPI)	+= ft5x46_ts_spi.o