media: atomisp: simplify makefiles

Remove an uneeded define and Makefile.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/pci/atomisp2/Makefile

@@ -334,7 +334,7 @@ DEFINES := -DHRT_HW -DHRT_ISP_CSS_CUSTOM_HOST -DHRT_USE_VIR_ADDRS -D__HOST__
 #DEFINES += -DPUNIT_CAMERA_BUSY
 #DEFINES += -DUSE_KMEM_CACHE
 
-DEFINES += -DATOMISP_POSTFIX=\"css2400b0_v21\" -DISP2400B0
+DEFINES += -DATOMISP_POSTFIX=\"css2400b0_v21\"
 DEFINES += -DSYSTEM_hive_isp_css_2400_system -DISP2400
 
 ccflags-y += $(INCLUDES) $(DEFINES) -fno-common

drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c

@@ -1921,7 +1921,7 @@ static const struct pci_device_id atomisp_pci_tbl[] = {
  * FIXME:
  * remove the ifs once we get rid of the ifs on other parts of the driver
  */
-#if defined(ISP2400) || defined(ISP2400B0)
+#if defined(ISP2400)
 	/* Merrifield */
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1178), .driver_data = HW_IS_ISP2400},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1179), .driver_data = HW_IS_ISP2400},

drivers/staging/media/atomisp/pci/atomisp2/css2400/Makefile

-ccflags-y += -DISP2400B0
-ISP2400B0 := y