Remove hard code number from full_pixel_diamond()

Use the new search pattern data structure that tells the number of
iterations to run.

Change-Id: I653fae774cd10bec1313e686f207fa46cb9b7aa0
diff --git a/av1/encoder/mcomp.c b/av1/encoder/mcomp.c
index e246b4a..8776747 100644
--- a/av1/encoder/mcomp.c
+++ b/av1/encoder/mcomp.c
@@ -2262,7 +2262,7 @@
       break;
     case NSTEP:
       var = full_pixel_diamond(x, mvp_full, step_param, error_per_bit,
-                               MAX_MVSEARCH_STEPS - 1 - step_param, cost_list,
+                               cfg->ss_count - 1 - step_param, cost_list,
                                fn_ptr, ref_mv, cfg, NULL, NULL, 0, 0);
       break;
     default: assert(0 && "Invalid search method.");