HID: debug: Remove duplicates from 'keys'

Duplicates in 'keys prevents kernel builds with clang, `make W=1` and
CONFIG_WERROR=y, for example:

drivers/hid/hid-debug.c:3443:18: error: initializer overrides prior initialization of this subobject [-Werror,-Winitializer-overrides]
 3443 |         [KEY_HANGEUL] = "HanGeul",              [KEY_HANGUP_PHONE] = "HangUpPhone",
      |                         ^~~~~~~~~
drivers/hid/hid-debug.c:3217:18: note: previous initialization is here
 3217 |         [KEY_HANGUEL] = "Hangeul",              [KEY_HANJA] = "Hanja",
      |                         ^~~~~~~~~

Fix this by removing them.

The logic of removal is that, remove...
1) if there is a constant that uses another defined constant, OR
2) the one that appears later in the list.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: andy-shev

drivers/hid/hid-debug.c

@@ -3309,9 +3309,9 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_EPG] = "EPG",			[KEY_PVR] = "PVR",
 	[KEY_MHP] = "MHP",			[KEY_LANGUAGE] = "Language",
 	[KEY_TITLE] = "Title",			[KEY_SUBTITLE] = "Subtitle",
-	[KEY_ANGLE] = "Angle",			[KEY_ZOOM] = "Zoom",
+	[KEY_ANGLE] = "Angle",
 	[KEY_MODE] = "Mode",			[KEY_KEYBOARD] = "Keyboard",
-	[KEY_SCREEN] = "Screen",		[KEY_PC] = "PC",
+	[KEY_PC] = "PC",
 	[KEY_TV] = "TV",			[KEY_TV2] = "TV2",
 	[KEY_VCR] = "VCR",			[KEY_VCR2] = "VCR2",
 	[KEY_SAT] = "Sat",			[KEY_SAT2] = "Sat2",
@@ -3409,8 +3409,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[BTN_TRIGGER_HAPPY35] = "TriggerHappy35", [BTN_TRIGGER_HAPPY36] = "TriggerHappy36",
 	[BTN_TRIGGER_HAPPY37] = "TriggerHappy37", [BTN_TRIGGER_HAPPY38] = "TriggerHappy38",
 	[BTN_TRIGGER_HAPPY39] = "TriggerHappy39", [BTN_TRIGGER_HAPPY40] = "TriggerHappy40",
-	[BTN_DIGI] = "Digi",			[BTN_STYLUS3] = "Stylus3",
-	[BTN_TOOL_QUINTTAP] = "ToolQuintTap",	[BTN_WHEEL] = "Wheel",
+	[BTN_STYLUS3] = "Stylus3",		 [BTN_TOOL_QUINTTAP] = "ToolQuintTap",
 	[KEY_10CHANNELSDOWN] = "10ChannelsDown",
 	[KEY_10CHANNELSUP] = "10ChannelsUp",
 	[KEY_3D_MODE] = "3DMode",		[KEY_ADDRESSBOOK] = "Addressbook",
@@ -3440,7 +3439,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_FN_RIGHT_SHIFT] = "FnRightShift",	[KEY_FRAMEBACK] = "FrameBack",
 	[KEY_FRAMEFORWARD] = "FrameForward",	[KEY_FULL_SCREEN] = "FullScreen",
 	[KEY_GAMES] = "Games",			[KEY_GRAPHICSEDITOR] = "GraphicsEditor",
-	[KEY_HANGEUL] = "HanGeul",		[KEY_HANGUP_PHONE] = "HangUpPhone",
+	[KEY_HANGUP_PHONE] = "HangUpPhone",
 	[KEY_IMAGES] = "Images",		[KEY_KBD_LCD_MENU1] = "KbdLcdMenu1",
 	[KEY_KBD_LCD_MENU2] = "KbdLcdMenu2",	[KEY_KBD_LCD_MENU3] = "KbdLcdMenu3",
 	[KEY_KBD_LCD_MENU4] = "KbdLcdMenu4",	[KEY_KBD_LCD_MENU5] = "KbdLcdMenu5",