bees: make it build with clang

Remove unused "addr check" functions.  We have ranged_cast for detecting
overflow bits.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>

src/bees.cc

@@ -221,20 +221,6 @@ BeesNote::get_status()
 
 // static inline helpers ----------------------------------------
 
-static inline
-bool
-bees_addr_check(uint64_t v)
-{
-	return !(v & (1ULL << 63));
-}
-
-static inline
-bool
-bees_addr_check(int64_t v)
-{
-	return !(v & (1ULL << 63));
-}
-
 string
 pretty(double d)
 {