DEPS: remove isolated client

Bug: chromium:1268452
Change-Id: Idbddd1a2079cfa1e38ce5209799bfb656e5b7911
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3270544Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77821}

DEPS

@@ -293,10 +293,6 @@ deps = {
           'package': 'infra/tools/luci/isolate/${{platform}}',
           'version': Var('luci_go'),
         },
-        {
-          'package': 'infra/tools/luci/isolated/${{platform}}',
-          'version': Var('luci_go'),
-        },
         {
           'package': 'infra/tools/luci/swarming/${{platform}}',
           'version': Var('luci_go'),