This patch adds a new speed feature which doesn't do the rather
expensive entropy context lookup or save to the table,  while
doing costing.

The speed up on desktop36p.y4m is around 10% other clips much less.

On the RTC test set this was + 1% in overall datarate.

Change-Id: Ia5144bbf45270671e7be9c8e4055369909e2f738

Clear warning caused by implied conversion from int32 to int64.

Change-Id: I473b37a54984cbfb22702eb3f712465881ff86e8

Change-Id: Ic97ddd5143425a7b63fac4e40d9740a10a0491ad

Change-Id: I5a01d0dccc9afc87e2adbb5ddc7d44379fe1f125

There is one parameter that is never used, therefore is removed.

Change-Id: I595722e7c5731534c72831315359e4dce9c21763

Two paramemters are not in use, therefore are removed.

Change-Id: I41eb601b7b4bf2feedb13b3f240315656d8694f9

Change-Id: Ia319bd924401677b5c30b0f46d1ab2be6a1f446e

Change-Id: Ie83e18802234199491dbb6e90886739814558f96

Change-Id: I111c5bd0dd47db7b1f6952c18056bee548bb42e9

Change-Id: I6d47618e8aee6e6c2fe1cf0b8bb4da0b2a0bab66

There were two parameters not in use, this commit removed them.

Change-Id: Ia03a73b9a2521400bed539df45574e34214ed93a

In addition, a local variable was renamed to avoid confusion.

Change-Id: Id4c497f9cfa219e8a414aa9fee9a85af5f147249

The function has evolved over time, now only calls vp9_rtcd(), so this
commit removes the function and changes to call vp9_rtcd() directly.

Change-Id: I8cfa6190daa4b28f6f3d1e11bb3a07f9c95322bf

The parameter was never used.

Change-Id: I99fd9aad697917ddbe3d10c71cae344228fafc31

Optimizing 2 functions to process 32 elements in parallel instead of 16:
1. vp9_sub_pixel_avg_variance64x64
2. vp9_sub_pixel_avg_variance32x32
both of those function were calling vp9_sub_pixel_avg_variance16xh_ssse3
instead of calling that function, it calls vp9_sub_pixel_avg_variance32xh_avx2
that is written in avx2 and process 32 elements in parallel.
This Optimization gave 80% function level gain and 2% user level gain

Change-Id: Iea694654e1b7612dc6ed11e2626208c2179502c8

Change-Id: I7255b3bc47d760333f58ac4878becbcc8ad30967

Change-Id: I7a1a7190dc32c65846a897a3162a02d63e59719f

Change-Id: I909a81991aa0cc18afe6526542c7513837445213

Change-Id: I7e2591b4b54e0eac8521e128c7d97f62d2057ed8