Remove chromium style plugin solution

The chromium-style plugin was replaced last year with cl/495068108.

Change-Id: Ifce7cf5e22f10681ffe743572182d759ae51fed2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4743665
Auto-Submit: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Reviewed-by: Yiwei Zhang <yiwzhang@google.com>

recipes/README.recipes.md

@@ -1041,7 +1041,7 @@ Raises:
 [DEPS](/recipes/recipe_modules/gclient/examples/full.py#7): [gclient](#recipe_modules-gclient), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
 
-— **def [RunSteps](/recipes/recipe_modules/gclient/examples/full.py#69)(api):**
+— **def [RunSteps](/recipes/recipe_modules/gclient/examples/full.py#68)(api):**
 ### *recipes* / [gclient:tests/diff\_deps](/recipes/recipe_modules/gclient/tests/diff_deps.py)
 
 [DEPS](/recipes/recipe_modules/gclient/tests/diff_deps.py#10): [gclient](#recipe_modules-gclient), [recipe\_engine/assertions][recipe_engine/recipe_modules/assertions], [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io]

recipes/recipe_modules/gclient/config.py

@@ -516,13 +516,6 @@ def gerrit_plugins_chromium_binary_size(c):
                          'chromium-binary-size.git')
   c.got_revision_mapping['gerrit_plugins_chromium_binary_size'] = 'got_revision'
 
-@config_ctx(includes=['gerrit'])
-def gerrit_plugins_chromium_style(c):
-  s = c.solutions.add()
-  s.name = 'gerrit_plugins_chromium_style'
-  s.url = ChromiumGitURL(c, 'infra', 'gerrit-plugins', 'chromium-style.git')
-  c.got_revision_mapping['gerrit_plugins_binary_size'] = 'got_revision'
-
 @config_ctx(includes=['gerrit'])
 def gerrit_plugins_chumpdetector(c):
   s = c.solutions.add()

recipes/recipe_modules/gclient/examples/full.py

@@ -33,7 +33,6 @@ TEST_CONFIGS = [
     'gerrit_plugins_buildbucket',
     'gerrit_plugins_chromium_behavior',
     'gerrit_plugins_chromium_binary_size',
-    'gerrit_plugins_chromium_style',
     'gerrit_plugins_chumpdetector',
     'gerrit_plugins_code_coverage',
     'gerrit_plugins_git_numberer',