[bazel] Delete encoded-c-signature.h

This seems to be introduced by mistake in:
https://chromium-review.googlesource.com/c/v8/v8/+/3265064

No-Try: true
Change-Id: I6872334af03aa5c55938a6af6a302c5689033332
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3281927
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77904}

BUILD.bazel

@@ -1209,7 +1209,6 @@ filegroup(
         "src/execution/isolate-utils-inl.h",
         "src/snapshot/embedded/platform-embedded-file-writer-base.h",
         "src/snapshot/embedded/embedded-file-writer.h",
-        "src/execution/encoded-c-signature.h",
         "src/execution/isolate.cc",
         "src/execution/isolate.h",
         "src/execution/local-isolate-inl.h",