lib/random: Make some functions in random.c inline

random_range, random_uint8 and random_uint16 are basically just wrappers
around random_uint32. Hence, don't export these functions so the compiler
can be smarter when it comes to optimizations.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

lib/random.c

@@ -86,17 +86,6 @@ random_bytes(void *p_, size_t n)
     }
 }
 
-uint8_t
-random_uint8(void)
-{
-    return random_uint32();
-}
-
-uint16_t
-random_uint16(void)
-{
-    return random_uint32();
-}
 
 uint32_t
 random_uint32(void)
@@ -117,12 +106,6 @@ random_uint64(void)
     return x;
 }
 
-int
-random_range(int max)
-{
-    return random_uint32() % max;
-}
-
 static uint32_t
 random_next(void)
 {