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This is causing a ~1.46 mb increase in the binary size of chrome on android.
Preemptively reverting this to facilitate further discussion.

This change introduces a dummy target in gyp that deletes existing localized resources. The target as well as the python script can be removed once all buildbots have run this once (~ a day).
Thankfully this is is not required in gn.

BUG=450548

Review URL: https://codereview.chromium.org/1062213002

Cr-Commit-Position: refs/heads/master@{#324432}