third_party/re2: Remove remove-static-initializers.patch.
* remove-static-initializers.patch has been landed upstream by Russ in
https://github.com/google/re2/commit/
cc56ba02d9d2bdafa614ad5ebf564dde287625bb,
remove the patch file now that it was merged upstream.
* Also remove re2-memory-optimization.patch, it also has landed in
https://github.com/google/re2/commit/
cc56ba02d9d2bdafa614ad5ebf564dde287625bb.
BUG=169860
R=thakis@chromium.org
TBR=cpu@chromium.org
Review URL: https://codereview.chromium.org/
1096813007
Cr-Commit-Position: refs/heads/master@{#326432}