Revert "Extend joint motion search range"

Revert submission 122484
STATS_CHANGED

Reason for revert: These patches were created for testing. It does not seem like a good trade-off in terms of computation vs. coding-gain.
Reverted Changes:

Ibf752e7c6:Extend joint motion search range
I55faaa020:Enable one-sided motion search to account for join...
I9555515db:Allow jnt motion search

Change-Id: I1784a043479dcd1874ed00ed1371ac15fd528657

av1/encoder/mcomp.c

diff --git a/av1/encoder/mcomp.c b/av1/encoder/mcomp.c
index 5eff5bf..70cfbf7 100644
--- a/av1/encoder/mcomp.c
+++ b/av1/encoder/mcomp.c
@@ -1627,6 +1627,10 @@
     MARK_MV_INVALID(second_best_mv);
   }
 
+  assert(ms_params->ms_buffers.second_pred == NULL &&
+         ms_params->ms_buffers.mask == NULL &&
+         "av1_full_pixel_search does not support compound pred");
+
   if (cost_list) {
     cost_list[0] = INT_MAX;
     cost_list[1] = INT_MAX;