"Remove ErrorSupport_.{h,cpp}.template as promised."
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/2045151
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/2047663

New Rev: 1f2492b6768e8620ece36a784c8ecd7ae7091610

Change-Id: I4acc65f0aafa94e20921a3e9ff7843303034bb60
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2044951Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66227}