xen/bitops: Drop the remnants of hweight{8,16}()

They are no more.  No functional change.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

xen/arch/arm/include/asm/bitops.h

@@ -86,8 +86,6 @@ bool clear_mask16_timeout(uint16_t mask, volatile void *p,
  */
 #define hweight64(x) generic_hweight64(x)
 #define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
 
 #endif /* _ARM_BITOPS_H */
 /*

xen/arch/ppc/include/asm/bitops.h

@@ -134,7 +134,5 @@ static inline int test_and_set_bit(unsigned int nr, volatile void *addr)
  */
 #define hweight64(x) __builtin_popcountll(x)
 #define hweight32(x) __builtin_popcount(x)
-#define hweight16(x) __builtin_popcount((uint16_t)(x))
-#define hweight8(x)  __builtin_popcount((uint8_t)(x))
 
 #endif /* _ASM_PPC_BITOPS_H */

xen/arch/x86/include/asm/bitops.h

@@ -483,7 +483,5 @@ static always_inline unsigned int arch_flsl(unsigned long x)
  */
 #define hweight64(x) generic_hweight64(x)
 #define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
 
 #endif /* _X86_BITOPS_H */

xen/include/xen/bitops.h

@@ -413,23 +413,6 @@ static inline unsigned int generic_hweight32(unsigned int w)
     return (w + (w >> 16)) & 0xff;
 }
 
-static inline unsigned int generic_hweight16(unsigned int w)
-{
-    w -= ((w >> 1) & 0x5555);
-    w =  (w & 0x3333) + ((w >> 2) & 0x3333);
-    w =  (w + (w >> 4)) & 0x0f0f;
-
-    return (w + (w >> 8)) & 0xff;
-}
-
-static inline unsigned int generic_hweight8(unsigned int w)
-{
-    w -= ((w >> 1) & 0x55);
-    w =  (w & 0x33) + ((w >> 2) & 0x33);
-
-    return (w + (w >> 4)) & 0x0f;
-}
-
 static inline unsigned int generic_hweight64(uint64_t w)
 {
     if ( BITS_PER_LONG < 64 )