freedreno: drop ARRAY_SIZE macro

Since now ARRAY_SIZE has been added to util/macros.h.  Fixes a bunch of:

  freedreno_util.h:79:0: warning: "ARRAY_SIZE" redefined
   #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
   ^
  In file included from ../../../../src/gallium/include/pipe/p_compiler.h:36:0,
                   from ../../../../src/gallium/include/pipe/p_context.h:31,
                   from freedreno_context.h:32,
                   from freedreno_context.c:29:
  ../../../../src/util/macros.h:29:0: note: this is the location of the previous definition
   #  define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
   ^

Signed-off-by: Rob Clark <robclark@freedesktop.org>

src/gallium/drivers/freedreno/freedreno_util.h

@@ -76,8 +76,6 @@ extern bool fd_binning_enabled;
 			debug_printf("%s:%d: "fmt "\n", \
 				__FUNCTION__, __LINE__, ##__VA_ARGS__); } while (0)
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
 /* for conditionally setting boolean flag(s): */
 #define COND(bool, val) ((bool) ? (val) : 0)