staging: r8188eu: Makefile: use one file list

It's enough to have a single list of source files. There are no config
settings for this driver that change the list of source files that
we compile.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211016173544.25376-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/Makefile

@@ -1,19 +1,19 @@
 
-OUTSRC_FILES :=				\
+r8188eu-y = \
 		hal/HalHWImg8188E_MAC.o \
 		hal/HalHWImg8188E_BB.o \
 		hal/HalHWImg8188E_RF.o \
 		hal/HalPhyRf_8188e.o \
 		hal/HalPwrSeqCmd.o \
 		hal/Hal8188EPwrSeq.o \
-		hal/Hal8188ERateAdaptive.o\
+		hal/Hal8188ERateAdaptive.o \
 		hal/hal_intf.o \
 		hal/hal_com.o \
 		hal/odm.o \
 		hal/odm_debug.o \
 		hal/odm_interface.o \
 		hal/odm_HWConfig.o \
-		hal/odm_RegConfig8188E.o\
+		hal/odm_RegConfig8188E.o \
 		hal/odm_RTL8188E.o \
 		hal/rtl8188e_cmd.o \
 		hal/rtl8188e_dm.o \
@@ -27,9 +27,7 @@ OUTSRC_FILES :=				\
 		hal/rtl8188eu_recv.o \
 		hal/rtl8188eu_xmit.o \
 		hal/usb_halinit.o \
-		hal/usb_ops_linux.o
+		hal/usb_ops_linux.o \
-
-_OS_INTFS_FILES :=				\
 		os_dep/ioctl_linux.o \
 		os_dep/mlme_linux.o \
 		os_dep/os_intfs.o \
@@ -37,11 +35,7 @@ _OS_INTFS_FILES :=				\
 		os_dep/recv_linux.o \
 		os_dep/usb_intf.o \
 		os_dep/usb_ops_linux.o \
-			os_dep/xmit_linux.o
+		os_dep/xmit_linux.o \
-
-_HAL_INTFS_FILES += $(OUTSRC_FILES)
-
-rtk_core :=				\
 		core/rtw_ap.o \
 		core/rtw_br_ext.o \
 		core/rtw_cmd.o \
@@ -62,10 +56,4 @@ rtk_core :=				\
 		core/rtw_wlan_util.o \
 		core/rtw_xmit.o
 
-r8188eu-y += $(rtk_core)
-
-r8188eu-y += $(_HAL_INTFS_FILES)
-
-r8188eu-y += $(_OS_INTFS_FILES)
-
 obj-$(CONFIG_R8188EU) := r8188eu.o