Clean up binding.h from locks/DEPS

This CL cleans up binding.h from from locks/DEPS since it's
completely removed from locks module and replaced with new
Mojo types.

Bug: 955171, 978694
Change-Id: I34a9f64bd87561bab31e158b66b77da76492999b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1777342Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Victor Costan <pwnall@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#691938}

third_party/blink/renderer/modules/locks/DEPS

 include_rules = [
-    "+mojo/public/cpp/bindings/binding.h",
     "-third_party/blink/renderer/modules",
     "+third_party/blink/renderer/modules/modules_export.h",
     "+third_party/blink/renderer/modules/locks",