m68k: Remove empty #ifdef/#else/#endif block

Leftover from commit 10b3a979 ("UAPI:
(Scripted) Disintegrate arch/m68k/include/asm")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/include/asm/ptrace.h

@@ -4,9 +4,6 @@
 #include <uapi/asm/ptrace.h>
 
 #ifndef __ASSEMBLY__
-#ifdef CONFIG_COLDFIRE
-#else
-#endif
 
 #ifndef PS_S
 #define PS_S  (0x2000)