lcd: cleanup lcd_drawchars

Remove code duplication from lcd_drawchars().

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/common/lcd.c b/common/lcd.c
index 70b848c..80923e9 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -346,19 +346,7 @@
 
 			*d++ = rest | (sym >> off);
 			rest = sym << (8-off);
-#elif LCD_BPP == LCD_COLOR8
-			for (c = 0; c < 8; ++c) {
-				*d++ = (bits & 0x80) ?
-						lcd_color_fg : lcd_color_bg;
-				bits <<= 1;
-			}
-#elif LCD_BPP == LCD_COLOR16
-			for (c = 0; c < 8; ++c) {
-				*d++ = (bits & 0x80) ?
-						lcd_color_fg : lcd_color_bg;
-				bits <<= 1;
-			}
-#elif LCD_BPP == LCD_COLOR32
+#else /* LCD_BPP == LCD_COLOR8 or LCD_COLOR16 or LCD_COLOR32 */
 			for (c = 0; c < 8; ++c) {
 				*d++ = (bits & 0x80) ?
 						lcd_color_fg : lcd_color_bg;