Remove unused ftx font backend driver

* src/ftxfont.c: Remove file.
* admin/notes/font-backend:
* configure.ac:
* src/Makefile.in:
* src/deps.mk (ftxfont.o):
* src/font.c (syms_of_font):
* src/font.h (top-level, font_property_index):
* src/xfns.c (Fx_create_frame, x_create_tip_frame): Remove unused ftx
font backend driver.  Thanks to Glenn Morris for pointing out that it
can be removed.  (Bug#34663)

1 files changed, 2 insertions, 4 deletions

diff --git a/src/font.h b/src/font.h
index 633d92709c5..0561e3c83f5 100644
--- a/src/font.h
+++ b/src/font.h
@@ -69,8 +69,8 @@ INLINE_HEADER_BEGIN
 
 enum font_property_index
   {
-    /* FONT-TYPE is a symbol indicating a font backend; currently `x',
-       `xft', and `ftx' are available on X, `uniscribe' and `gdi' on
+    /* FONT-TYPE is a symbol indicating a font backend; currently `x'
+       and `xft' are available on X, `uniscribe' and `gdi' on
        Windows, and `ns' under Cocoa / GNUstep.  */
     FONT_TYPE_INDEX,
 
@@ -938,7 +938,6 @@ extern void syms_of_ftfont (void);
 extern struct font_driver const xfont_driver;
 extern Lisp_Object xfont_get_cache (struct frame *);
 extern void syms_of_xfont (void);
-extern void syms_of_ftxfont (void);
 #ifdef HAVE_XFT
 extern struct font_driver const xftfont_driver;
 #ifdef HAVE_HARFBUZZ
@@ -946,7 +945,6 @@ extern struct font_driver xfthbfont_driver;
 #endif  /* HAVE_HARFBUZZ */
 #endif
 #if defined HAVE_FREETYPE || defined HAVE_XFT
-extern struct font_driver const ftxfont_driver;
 extern void syms_of_xftfont (void);
 #endif
 #ifdef HAVE_BDFFONT