usb: phy: Remove the phy-rcar-gen2-usb driver

The phy-rcar-gen2-usb driver, which supports legacy platform data only,
is no longer used since commit a483dcb ("ARM: shmobile: lager:
Remove legacy board support").

This driver was superseded by the DT-only phy-rcar-gen2 driver, which
was introduced in commit 1233f59 ("phy: Renesas R-Car Gen2 PHY
driver").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/phy/Kconfig

@@ -187,19 +187,6 @@ config USB_RCAR_PHY
 	  To compile this driver as a module, choose M here: the
 	  module will be called phy-rcar-usb.
 
-config USB_RCAR_GEN2_PHY
-	tristate "Renesas R-Car Gen2 USB PHY support"
-	depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST
-	select USB_PHY
-	help
-	  Say Y here to add support for the Renesas R-Car Gen2 USB PHY driver.
-	  It is typically used to control internal USB PHY for USBHS,
-	  and to configure shared USB channels 0 and 2.
-	  This driver supports R8A7790 and R8A7791.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called phy-rcar-gen2-usb.
-
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
 	depends on ARM || ARM64

drivers/usb/phy/Makefile

@@ -23,7 +23,6 @@ obj-$(CONFIG_USB_MSM_OTG)		+= phy-msm-usb.o
 obj-$(CONFIG_USB_MV_OTG)		+= phy-mv-usb.o
 obj-$(CONFIG_USB_MXS_PHY)		+= phy-mxs-usb.o
 obj-$(CONFIG_USB_RCAR_PHY)		+= phy-rcar-usb.o
-obj-$(CONFIG_USB_RCAR_GEN2_PHY)		+= phy-rcar-gen2-usb.o
 obj-$(CONFIG_USB_ULPI)			+= phy-ulpi.o
 obj-$(CONFIG_USB_ULPI_VIEWPORT)		+= phy-ulpi-viewport.o
 obj-$(CONFIG_KEYSTONE_USB_PHY)		+= phy-keystone.o