Remove exec_script_whitelist from dotfile_settings.gni.

All of the clients of this file have been updated to use
exec_script_allowlist, so we no longer need to set
exec_script_whitelist as well.

Bug: chromium:389986807
Change-Id: Ifb5ce794e4329b54e5a91ca658c41ce9ba038c4d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6441919
Reviewed-by: Yuly Novikov <[email protected]>
Commit-Queue: Dirk Pranke <[email protected]>

Author: dpranke

dotfile_settings.gni

@@ -7,8 +7,4 @@
 
 angle_dotfile_settings = {
   exec_script_allowlist = [ get_path_info("BUILD.gn", "abspath") ]
-
-  # TODO(crbug.com/389986807) - move other clients to `exec_script_allowlist`
-  # so that we don't need to keep supporting `exec_script_whitelist`.
-  exec_script_whitelist = exec_script_allowlist
 }