i386: remove unused rdtsc() macro

All users to the two-part rdtsc() macro have already switched to using
rdtscl() or rdtscll().  Remove the now-obsolete macro.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-i386/msr.h

@@ -121,13 +121,6 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
 		__err;							\
 	})
 
-#define rdtsc(low,high)						\
-	do {							\
-		u64 _l = native_read_tsc();			\
-		(low) = (u32)_l;				\
-		(high) = _l >> 32;				\
-	} while(0)
-
 #define rdtscl(low)						\
 	do {							\
 		(low) = native_read_tsc();			\

include/asm-i386/paravirt.h

@@ -560,11 +560,6 @@ static inline u64 paravirt_read_tsc(void)
 {
 	return PVOP_CALL0(u64, read_tsc);
 }
-#define rdtsc(low,high) do {			\
-	u64 _l = paravirt_read_tsc();		\
-	low = (u32)_l;				\
-	high = _l >> 32;			\
-} while(0)
 
 #define rdtscl(low) do {			\
 	u64 _l = paravirt_read_tsc();		\