tty: vt: eliminate unneeded consw::con_putc() implementations

All these consw::con_putc() implementations do the same as
consw::con_putcs() (only for one charattr) or even call
consw::con_putcs() on their own.

Drop them, as thanks to the new con_putc() helper in the previous patch,
the console code performs this already -- exactly if consw::con_putc()
is missing (NULL).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-25-jirislaby@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/video/console/mdacon.c

@@ -427,11 +427,6 @@ static inline u16 *mda_addr(unsigned int x, unsigned int y)
 	return mda_vram_base + y * mda_num_columns + x;
 }
 
-static void mdacon_putc(struct vc_data *c, int ch, int y, int x)
-{
-	scr_writew(mda_convert_attr(ch), mda_addr(x, y));
-}
-
 static void mdacon_putcs(struct vc_data *c, const unsigned short *s,
 		         int count, int y, int x)
 {
@@ -536,7 +531,6 @@ static const struct consw mda_con = {
 	.con_init =		mdacon_init,
 	.con_deinit =		mdacon_deinit,
 	.con_clear =		mdacon_clear,
-	.con_putc =		mdacon_putc,
 	.con_putcs =		mdacon_putcs,
 	.con_cursor =		mdacon_cursor,
 	.con_scroll =		mdacon_scroll,

drivers/video/console/sticon.c

@@ -71,17 +71,6 @@ static const char *sticon_startup(void)
     return "STI console";
 }
 
-static void sticon_putc(struct vc_data *conp, int c, int ypos, int xpos)
-{
-    if (vga_is_gfx || console_blanked)
-	    return;
-
-    if (conp->vc_mode != KD_TEXT)
-    	    return;
-
-    sti_putc(sticon_sti, c, ypos, xpos, font_data[conp->vc_num]);
-}
-
 static void sticon_putcs(struct vc_data *conp, const unsigned short *s,
 			 int count, int ypos, int xpos)
 {
@@ -362,7 +351,6 @@ static const struct consw sti_con = {
 	.con_init		= sticon_init,
 	.con_deinit		= sticon_deinit,
 	.con_clear		= sticon_clear,
-	.con_putc		= sticon_putc,
 	.con_putcs		= sticon_putcs,
 	.con_cursor		= sticon_cursor,
 	.con_scroll		= sticon_scroll,

drivers/video/console/vgacon.c

@@ -1193,7 +1193,6 @@ static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
 
 static void vgacon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
 			 unsigned int width) { }
-static void vgacon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
 static void vgacon_putcs(struct vc_data *vc, const unsigned short *s,
 			 int count, int ypos, int xpos) { }
 
@@ -1203,7 +1202,6 @@ const struct consw vga_con = {
 	.con_init = vgacon_init,
 	.con_deinit = vgacon_deinit,
 	.con_clear = vgacon_clear,
-	.con_putc = vgacon_putc,
 	.con_putcs = vgacon_putcs,
 	.con_cursor = vgacon_cursor,
 	.con_scroll = vgacon_scroll,

drivers/video/fbdev/core/fbcon.c

@@ -1292,14 +1292,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
 			   get_color(vc, info, scr_readw(s), 0));
 }
 
-static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos)
-{
-	unsigned short chr;
-
-	scr_writew(c, &chr);
-	fbcon_putcs(vc, &chr, 1, ypos, xpos);
-}
-
 static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
 {
 	struct fb_info *info = fbcon_info_from_console(vc->vc_num);
@@ -3159,7 +3151,6 @@ static const struct consw fb_con = {
 	.con_init 		= fbcon_init,
 	.con_deinit 		= fbcon_deinit,
 	.con_clear 		= fbcon_clear,
-	.con_putc 		= fbcon_putc,
 	.con_putcs 		= fbcon_putcs,
 	.con_cursor 		= fbcon_cursor,
 	.con_scroll 		= fbcon_scroll,