x86/cpu/cyrix: Remove {get,set}Cx86_old macros used for Cyrix processors

The getCx86_old() and setCx86_old() macros have been replaced with
correctly working getCx86() and setCx86(), so remove these unused macros.
Signed-off-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: luto@kernel.org
Link: https://lkml.kernel.org/r/1552596361-8967-3-git-send-email-tedheadster@gmail.com

arch/x86/include/asm/processor-cyrix.h

@@ -3,19 +3,6 @@
  * NSC/Cyrix CPU indexed register access. Must be inlined instead of
  * macros to ensure correct access ordering
  * Access order is always 0x22 (=offset), 0x23 (=value)
- *
- * When using the old macros a line like
- *   setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88);
- * gets expanded to:
- *  do {
- *    outb((CX86_CCR2), 0x22);
- *    outb((({
- *        outb((CX86_CCR2), 0x22);
- *        inb(0x23);
- *    }) | 0x88), 0x23);
- *  } while (0);
- *
- * which in fact violates the access order (= 0x22, 0x22, 0x23, 0x23).
  */
 
 static inline u8 getCx86(u8 reg)
@@ -29,11 +16,3 @@ static inline void setCx86(u8 reg, u8 data)
 	outb(reg, 0x22);
 	outb(data, 0x23);
 }
-
-#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); })
-
-#define setCx86_old(reg, data) do { \
-	outb((reg), 0x22); \
-	outb((data), 0x23); \
-} while (0)
-