Update libjpeg-turbo to v2.0.1

In order to apply some performance updates from ARM, we need to update
libjpeg-turbo. These performance updates have yielded a 50% speedup on
some devices.

This CL updates our copy of libjpeg-turbo to v2.0.1 and re-applies our
local patches. This patch also deletes some extra files which were not
being used locally.

Update our local patch that was applied to fix http://crbug.com/398235
(https://codereview.appspot.com/229430043/). The original patch
incorrectly removed "& 0xFF" which limited an array index to within
that array's bounds (effectively reverting
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/fa1d18385d904d530b4aec83ab7757a33397de6e).
Restore the mask, making the array access safe and fixing a graphical
glitch which would otherwise be introduced by this change.

Bug:922430
Change-Id: I3860fdb424deecf7a17818ed09a640e632e71f8d
diff --git a/jcinit.c b/jcinit.c
index 463bd8c..78aa465 100644
--- a/jcinit.c
+++ b/jcinit.c
@@ -28,13 +28,13 @@
  */
 
 GLOBAL(void)
-jinit_compress_master (j_compress_ptr cinfo)
+jinit_compress_master(j_compress_ptr cinfo)
 {
   /* Initialize master control (includes parameter checking/processing) */
   jinit_c_master_control(cinfo, FALSE /* full compression */);
 
   /* Preprocessing */
-  if (! cinfo->raw_data_in) {
+  if (!cinfo->raw_data_in) {
     jinit_color_converter(cinfo);
     jinit_downsampler(cinfo);
     jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
@@ -60,14 +60,14 @@
   }
 
   /* Need a full-image coefficient buffer in any multi-pass mode. */
-  jinit_c_coef_controller(cinfo,
-                (boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding));
+  jinit_c_coef_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
+                                           cinfo->optimize_coding));
   jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);
 
   jinit_marker_writer(cinfo);
 
   /* We can now tell the memory manager to allocate virtual arrays. */
-  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);
+  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr)cinfo);
 
   /* Write the datastream header (SOI) immediately.
    * Frame and scan headers are postponed till later.